Emerson Electric Co., D/B/A Fusite, and Emerson Climate Technologies, Inc. v. Clarence Johnson and United States Liability Insurance Company ( 2018 )


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  •                        In the
    Court of Appeals
    Second Appellate District of Texas
    at Fort Worth
    ___________________________
    No. 02-16-00173-CV
    ___________________________
    EMERSON ELECTRIC CO., D/B/A FUSITE, AND EMERSON CLIMATE
    TECHNOLOGIES, INC., Appellants
    V.
    CLARENCE JOHNSON AND UNITED STATES LIABILITY INSURANCE
    COMPANY, Appellees
    On Appeal from the 48th District Court
    Tarrant County, Texas
    Trial Court No. 048-268665-13
    Before Walker, Kerr, and Pittman, JJ.
    Memorandum Opinion by Justice Pittman
    MEMORANDUM OPINION
    This is a products liability case. Appellee Clarence Johnson sued Appellants
    Emerson Electric Co., d/b/a Fusite (Fusite) and Emerson Climate Technologies, Inc.
    (Emerson) after he was seriously injured by the explosion of a heating, ventilation,
    and air conditioning (HVAC) compressor that was designed and sold by Emerson and
    was equipped with a terminal designed and manufactured by Fusite. Appellee United
    States Liability Insurance Company (the Insurance Company) intervened during the
    underlying lawsuit. After a lengthy jury trial, the trial court rendered a judgment in
    favor of Johnson and the Insurance Company. In six issues, Fusite and Emerson
    challenge the legal and factual sufficiency of the evidence supporting the jury’s verdict
    on Johnson’s design defect claims, marketing defect claims, and mental anguish
    damages; they challenge the trial court’s decision to allow Johnson’s expert to testify
    regarding design defects in the HVAC compressor; and they challenge the jury charge,
    contending that it was erroneous as to the design defect and marketing defect claims.
    For the reasons set forth herein, we affirm.
    BACKGROUND
    I.    What is Terminal Venting?
    An HVAC compressor and its motor are encased in a sealed cylinder. Power is
    provided to the motor through a steel terminal sealed onto the compressor shell. This
    terminal holds conductive pins that pass through it into the compressor. The pins
    connect to a power source that powers the compressor.             These pins sit in an
    2
    insulating agent, such as glass. Electrical malfunctions can cause excess current to
    flow through the system and heat the terminal pins so much that they weaken the
    glass holding them in place to the point that it can no longer hold them. The pressure
    inside of the compressor can then expel the pins from the terminal, allowing the
    heated refrigerant and oil inside the compressor to leak or shoot out. This event is
    referred to in the industry as “terminal venting.” 1 “Terminal venting with ignition”
    occurs when the oil and refrigerant ignite. A terminal vent caused Johnson’s injuries
    in this case.
    II.    A Terminal Vent Occurs While Johnson Services the Emerson
    Compressor.
    Johnson is a licensed HVAC technician. He has owned his own HVAC
    servicing business since the mid-1990s. In 2012, one of his clients was Miller Food
    Mart. On August 2, 2012, he replaced one of the two compressors in the Miller Food
    Mart’s HVAC unit with the Emerson compressor that later injured him.
    The day following the installation, Johnson received a report that the HVAC
    unit was not working properly. When Johnson arrived at the store, his nephew and
    assistant, Antonio Morris, had already arrived. Morris told Johnson that the fuses had
    Terminal venting, or “hermetic leakage,” can also occur from arcing—when
    1
    the current “jumps” from the element carrying it to another element. Arcing
    generates high heat, and an arc to the terminal pins or some other element in the
    compressor can cause the glass holding the pins to heat enough to soften. A terminal
    pin can also fail—and thereby create a hole from which the compressor’s contents
    can leak—from pressure or physical damage.
    3
    blown in the disconnect box attached to the HVAC unit. This did not cause Johnson
    any specific concerns about the new Emerson compressor because this particular
    HVAC unit had a tendency to blow fuses. After the men replaced the fuses and reset
    the breaker, Johnson turned the HVAC unit on and heard an unusual noise, “a
    rumbling or something,” and he began to look for the source. Unbeknownst to
    Johnson, the compressor had suffered an internal failure at some point between the
    time of its installation and his return to the store to troubleshoot the problem on
    August 3. Excessive heat inside the compressor had begun to soften the glass
    insulation holding the terminal pins.
    After isolating different components, Johnson determined that the sounds
    came from the new Emerson compressor. Johnson decided to get an ohm reading2
    on the new compressor.3 This reading required him to remove the cover from the
    terminal. When Johnson removed the terminal’s cover, a terminal vent occurred; two
    of the three terminal pins shot out of the Emerson compressor, allowing scalding hot
    refrigerant and oil to spray out of the terminal. The oil and refrigerant mix ignited
    2
    “Ohm” is the standard unit of electrical resistance in the International System
    of Units; an “ohm meter” is an instrument that measures electrical resistance of a
    material to the flow of current. Ohm, Webster’s New Int’l Dictionary (3rd ed. 2002);
    Ohmmeter, 
    Webster’s, supra
    .
    3
    Christopher Lucas, chair of the HVAC program at Texas State Technical
    College, testified that the resistance between the compressor windings and the
    compressor shell should measure “in the millions and millions and millions of ohms
    or infinity. . . . [I]n other words, . . . you don’t want there to be a path for the
    electricity to . . . touch the casing of the compressor.”
    4
    and covered Johnson in flames. As a result, Johnson suffered second- and third-
    degree burns on over sixty percent of his body.
    Importantly, a competitor of Emerson’s in the HVAC compressor market
    includes warnings with its compressors to “[b]e alert for sounds of arcing[,] sizzling,
    sputtering, or popping inside the compressor” and to immediately step away if such
    sounds are heard. However, the Emerson compressor Johnson installed at the Miller
    Food Mart did not include such warnings.
    III.   The HVAC Unit Is Not Connected to Its Power Source When Terminal
    Venting Occurs.
    According to Johnson, before removing the terminal’s cover, he turned off
    power to the HVAC unit by pulling out the fuse disconnect. 4 Morris initially told fire
    investigators—on the day of the incident, while he was at Parkland Hospital’s burn
    unit with his uncle—that he thought Johnson had left the main disconnect in the
    HVAC unit. But, Morris also stated that he thought there was no power to the
    Emerson compressor because he and Johnson removed some of its wires and that he
    did not understand how the compressor could have exploded when it did not have
    power connected to it. When firefighters arrived at the scene after the terminal
    At trial, counsel and witnesses referred to this part as “the fuse disconnect,”
    4
    the “fuse box,” the “fuse disconnect box,” and the “main disconnect.” The term
    “main disconnect” was also used to describe the part of the unit that the fuse
    disconnect plugs into. Whatever term was used, it was used to refer to a part that,
    when removed, disconnects the HVAC unit from a power source.
    5
    venting, they found the fuse disconnect sitting atop the HVAC unit, where Johnson
    said he left it.
    IV.    Johnson Sues Fusite and Emerson.
    Johnson sued Fusite and Emerson, asserting claims of design defects and
    marketing defects based in negligence and strict products liability, failure to correct
    dangerous and hazardous conditions, and gross negligence. The Insurance Company,
    the insurer of Miller Food Mart, intervened.
    At trial, Johnson relied on expert testimony from Dr. Don Russell, an electrical
    engineer and distinguished professor at Texas A&M University. Dr. Russell holds
    over twenty patents, including patents on protection systems for electrical power
    systems.     At Texas A&M, he teaches classes on design, and he has conducted
    extensive research on failed electrical circuits. Prior to trial, Fusite and Emerson filed
    a motion to exclude Russell’s testimony. They objected to Dr. Russell on several
    grounds, arguing that:     (1) his opinions on the propriety of Johnson’s HVAC
    installation and services procedures should be excluded because he lacked expertise
    and supporting data; (2) his hypotheses about the cause of ignition were not grounded
    on underlying scientific principles, research, and methodology; (3) his opinions
    regarding Johnson’s potential response to additional warnings if Emerson had
    provided them were speculative; (4) his opinion regarding alternative designs was
    inadmissible as it was undeveloped and untested; and (5) he did not have adequate
    6
    expertise to opine about the design of HVAC compressors. The trial court denied the
    motion.
    Some of Johnson’s claims were resolved by summary judgment and directed
    verdict or were not otherwise pursued.        At the charge conference, Fusite and
    Emerson objected to several questions in the charge and requested the submission of
    several instructions, all of which the trial court overruled or denied. The jury was
    ultimately charged on Johnson’s strict products liability design defect claims against
    Fusite and Emerson; his strict products liability marketing defect claims against
    Emerson; Fusite and Emerson’s defensive issue of Johnson’s contributory negligence;
    the proportionate responsibility of Emerson, Fusite, and Johnson; and damages.
    V.    The Jury Finds in Favor of Johnson.
    The jury found in favor of Johnson on all of his liability claims. Specifically,
    the jury found: (1) the Fusite terminal had a design defect that was a producing cause
    of the occurrence or injury; (2) the Emerson compressor had two design defects—the
    absence of a system for monitoring the electric current to the pins or for monitoring
    their temperature and the absence of a permanent guard on the Emerson compressor
    housing—that were producing causes of the occurrence or injury; and (3) a defect in
    the Emerson compressor’s warnings or instructions was a producing cause of the
    occurrence or injury. The jury also found that Johnson was contributorily negligent in
    causing the occurrence or injury and that the proportionate responsibility of Fusite,
    Emerson, and Johnson was 15%, 75%, and 10%, respectively.
    7
    The jury awarded Johnson:
    • $2,000,000 in past physical pain damages;
    • $750,000 in future physical pain damages;
    • $2,000,000 in past mental anguish damages;
    • $3,000,000 in future mental anguish damages;
    • $158,129 in past loss of earning capacity;
    • $584,794 in future loss of earning capacity;
    • $3,000,000 in past disfigurement damages;
    • $500,000 in future disfigurement damages;
    • $750,000 in past physical impairment damages;
    • $250,000 for future physical impairment damages;
    • $727,851 for past medical and health care expenses; and
    • $2,579,000 for future medical and health care expenses.
    The trial court rendered judgment on the verdict. In accordance with the jury’s
    proportionate responsibility findings, the trial court reduced the jury’s award to
    Johnson by ten percent.     In total, the trial court’s judgment awarded Johnson
    $14,669,796.60 in damages, with Emerson liable for the full amount and Fusite jointly
    8
    and severally liable for fifteen percent of that amount. The trial court further ordered
    that the Insurance Company recover $18,298.11 from Fusite and Emerson.5
    DISCUSSION
    I.    Fusite and Emerson Challenge the Jury’s Liability Findings Against
    Them and the Corresponding Jury Questions.
    In their first issue, Fusite and Emerson challenge the legal and factual
    sufficiency of the evidence supporting the jury finding against Emerson on Johnson’s
    marketing defect claim. In the second issue, they contend that the jury charge on that
    claim is erroneous. In their next three issues, Fusite and Emerson challenge the jury’s
    findings on Johnson’s design defect claims, complaining that Dr. Russell’s testimony
    was inadmissible, that the evidence was legally and factually insufficient, and that the
    related jury charge was erroneous.
    A.     Johnson’s Claims Are Grounded in Strict Products Liability Law.
    A “defective product” is a product that is unreasonably dangerous to the user
    or consumer. Restatement (Second) of Torts § 402A(1); Sims v. Washex Mach. Corp.,
    
    932 S.W.2d 559
    , 561–62 (Tex. App.—Houston [1st Dist.] 1995, no writ); see also Borel
    v. Fibreboard Paper Prod. Corp., 
    493 F.2d 1076
    , 1087 (5th Cir. 1973). A plaintiff may
    prove a product “defective” by showing it is (1) unreasonably dangerous as
    5
    Prior to trial, the parties stipulated the Insurance Company incurred
    $18,298.11 in damages under its policy with the Miller Food Mart.
    9
    manufactured,6 (2) unreasonably dangerous as designed, or (3) unreasonably
    dangerous because adequate warnings or instructions were not provided.7 Joseph E.
    Seagram & Sons, Inc. v. McGuire, 
    814 S.W.2d 385
    , 387 (Tex. 1991); Lucas v. Tex. Indus.,
    Inc., 
    696 S.W.2d 372
    , 377 (Tex. 1984).
    A product with a design defect complies with all design specifications, but the
    design configuration is unreasonably dangerous in that the risks of harm associated
    with its intended and reasonably foreseeable uses outweigh its utility. USX Corp. v.
    Salinas, 
    818 S.W.2d 473
    , 482 n.8 (Tex. App.—San Antonio 1991, writ. denied). In
    contrast, a marketing defect occurs when a defendant knows or should know of a
    potential risk of harm presented by a product but markets it without adequately
    warning of the danger or providing instructions for safe use. 
    Id. at 482.
    A product need not be proven defective in all three ways in order to sustain a
    finding of strict liability. 
    Sims, 932 S.W.2d at 562
    .
    Manufacturing defects are not an issue in this case.
    6
    7
    Courts also refer to marketing defect claims as “failure-to-warn” claims. See,
    e.g., Hanus v. Tex. Utils. Co., 
    71 S.W.3d 874
    , 878 (Tex. App.—Fort Worth 2002, no
    pet.); see also Am. Tobacco Co., Inc. v. Grinnell, 
    951 S.W.2d 420
    , 426 (Tex. 1997) (“A
    defendant’s failure to warn of a product’s potential dangers when warnings are
    required is a type of marketing defect.”).
    10
    B.     The Evidence Sufficiently Supports the Jury’s Findings on
    Johnson’s Marketing Defect Claims Against Emerson, and the
    Jury Charge Is Not Erroneous.
    We initially address the jury’s findings in favor of Johnson on his strict liability
    marketing defect claims against Emerson.
    1.     The Evidence Sufficiently Supports the Jury’s Finding that a
    Defect in the Compressor’s Warnings or Instructions
    Regarding the Risk of Terminal Venting Was a Producing
    Cause of Johnson’s Injuries.
    a.     We Apply the Familiar Sufficiency Standards of
    Review.
    Fusite and Emerson’s legal sufficiency challenge to the jury’s marketing defect
    finding can only be sustained if: (1) the record discloses a complete absence of
    evidence of a vital fact; (2) the court is barred by rules of law or of evidence from
    giving weight to the only evidence offered to prove a vital fact; (3) the evidence
    offered to prove a vital fact is no more than a mere scintilla; or (4) the evidence
    establishes conclusively the opposite of a vital fact.       Ford Motor Co. v. Castillo,
    
    444 S.W.3d 616
    , 620 (Tex. 2014) (op. on reh’g); Uniroyal Goodrich Tire Co. v. Martinez,
    
    977 S.W.2d 328
    , 334 (Tex. 1998), cert. denied, 
    526 U.S. 1040
    (1999). In determining
    whether there is legally sufficient evidence to support the finding under review, we
    must consider evidence favorable to the finding if a reasonable factfinder could and
    disregard evidence contrary to the finding unless a reasonable factfinder could not.
    Cent. Ready Mix Concrete Co. v. Islas, 
    228 S.W.3d 649
    , 651 (Tex. 2007); City of Keller v.
    Wilson, 
    168 S.W.3d 802
    , 807, 827 (Tex. 2005).
    11
    Anything more than a scintilla of evidence is legally sufficient to support the
    finding. Cont’l Coffee Prods. Co. v. Cazarez, 
    937 S.W.2d 444
    , 450 (Tex. 1996); Leitch v.
    Hornsby, 
    935 S.W.2d 114
    , 118 (Tex. 1996). More than a scintilla of evidence exists if
    the evidence furnishes some reasonable basis for differing conclusions by reasonable
    minds about the existence of a vital fact. Rocor Int’l, Inc. v. Nat’l Union Fire Ins. Co.,
    
    77 S.W.3d 253
    , 262 (Tex. 2002).
    Fusite and Emerson also face a demanding burden in challenging the factual
    sufficiency of evidence supporting the jury’s finding. When reviewing an assertion
    that the evidence is factually insufficient to support a finding, we set aside the finding
    only if, after considering and weighing all of the evidence in the record pertinent to
    that finding, we determine that the credible evidence supporting the finding is so
    weak, or so contrary to the overwhelming weight of all the evidence, that the answer
    should be set aside and a new trial ordered. Pool v. Ford Motor Co., 
    715 S.W.2d 629
    ,
    635 (Tex. 1986) (op. on reh’g); Cain v. Bain, 
    709 S.W.2d 175
    , 176 (Tex. 1986); Garza v.
    Alviar, 
    395 S.W.2d 821
    , 823 (Tex. 1965).
    b.     Strict Products Liability Marketing Defect Claims
    Have Five Elements.
    Even a product which is safely designed and manufactured may be
    unreasonably dangerous as marketed because of a lack of adequate warnings or
    instructions. 
    McGuire, 814 S.W.2d at 387
    ; Malek v. Miller Brewing Co., 
    749 S.W.2d 521
    ,
    522 (Tex. App.—Houston [1st Dist.] 1988, writ denied). Under a marketing defect
    12
    theory, it is the absence of an adequate warning or instructions that makes use of the
    product unreasonably dangerous. 
    Sims, 932 S.W.2d at 562
    ; see also Ethicon Endo-Surgery,
    Inc. v. Meyer, 
    249 S.W.3d 513
    , 516 (Tex. App.—Fort Worth 2007, no pet.) (“A
    marketing defect occurs when a defendant knows or should know of a potential risk
    of harm presented by the product but markets it without adequately warning of the
    danger or providing instructions for safe use.”).
    To establish a strict products liability marketing defect claim, a plaintiff must
    prove the following elements:
    1.    a risk of harm is inherent in the product or may arise from
    the intended or reasonably anticipated use of the product;
    2.     the product supplier actually knew or should have
    reasonably foreseen the risk of harm at the time the product was
    marketed;
    3.     the product contains a marketing defect;
    4.     the absence of a warning and/or instructions renders the
    product unreasonably dangerous to the ultimate user or consumer of the
    product; and
    5.    the failure to warn and/or instruct must constitute a
    causative nexus in the product user’s injury.
    
    Salinas, 818 S.W.2d at 482
    –83; see also Ranger Conveying & Supply Co. v. Davis,
    
    254 S.W.3d 471
    , 480 (Tex. App.—Houston [1st Dist.] 2007, pet. denied).
    Sellers have no duty to warn of “open and obvious” defects in strict products
    liability failure-to-warn claims. Caterpillar, Inc. v. Shears, 
    911 S.W.2d 379
    , 382 (Tex.
    1995); Beans v. Entex, Inc., 
    744 S.W.2d 323
    , 325 (Tex. App.—Houston [1st Dist.] 1988,
    13
    writ denied) (upholding summary judgment against a plaintiff on the basis that the
    danger was open and obvious and the defendant therefore had no duty to warn of it);
    see also Sauder Custom Fabrication Inc. v. Boyd, 
    967 S.W.2d 349
    , 350–51 (Tex. 1998)
    (holding that (1) the duty to warn applied only to risks not known to a product’s
    consumer and (2) “consumer” means “an ordinary user of the product, not
    necessarily . . . an ordinary person unfamiliar with the product.”). Thus, “[w]hen the
    foreseeable users of a product have special training, a supplier has no duty to warn of
    risks that should be obvious to them, even if persons without such training would not
    appreciate the risks.” Humble Sand & Gravel, Inc. v. Gomez, 
    146 S.W.3d 170
    , 183 (Tex.
    2004). As a result, in looking at whether the defendant owed a duty to warn, a court
    looks not at whether the risk would be obvious to an ordinary person or to the
    specific plaintiff, but at whether such risk would be obvious to an ordinary,
    foreseeable8 user of the product. 
    Sauder, 967 S.W.2d at 350
    –51.
    In sum, a defendant need not warn either of (1) dangers that would be obvious
    to the ordinary user, as opposed to the ordinary person who may not be familiar with
    the product, or (2) dangers that are common knowledge in the community.9 The
    8
    In discussing the duty to warn, Sauder uses the terms “ordinary user” and
    “average user,” while Humble Sand and the Restatement (Third) use the term
    “foreseeable user.” Humble 
    Sand, 146 S.W.3d at 183
    ; 
    Sauder, 967 S.W.2d at 351
    ;
    Restatement (Third) of Torts: Prod. Liab. § 2, cmt. i. (1998). We use these terms
    interchangeably.
    The Supreme Court of Texas has not defined what constitutes the
    9
    “community” for purposes of determining what knowledge is generally known. Case
    14
    determination of whether a risk is obvious or commonly known is an objective
    standard. 
    Id. at 350.
    c.      Johnson’s Training and Experience Did Not Negate
    the Need for a Warning Regarding Terminal Venting.
    Fusite and Emerson contend that the evidence does not support the jury’s
    finding against Emerson on Johnson’s strict products liability marketing defect claim
    regarding the absence of adequate warnings or instructions of the terminal venting
    risk because: (1) Emerson had no duty to warn Johnson, an HVAC professional,
    about the risk of terminal venting; (2) Johnson already knew about that risk; and
    (3) therefore, there was no product defect or causation as to him.
    law generally suggests that the “community” a court must reference is a community of
    the ordinary users of the product, although for some products, “community” includes
    the public at large, even if some members of the public do not use the product. See
    
    Grinnell, 951 S.W.2d at 427
    , 431 (discussing the community’s knowledge about
    nicotine addiction, stating that common knowledge “connotes a general societal
    understanding” of the risks of a product, but more specifically considering the
    knowledge attributable to the community of smokers); cf. 
    McGuire, 814 S.W.2d at 388
    (“Texas courts have recognized that there is common knowledge among the public
    . . . that intoxicating liquor can . . . impair the ability of the imbiber to operate a motor
    vehicle.”); Restatement (Third) of Torts: Products Liability § 2 cmt. j (1997) (“In
    general, a product seller is not subject to liability for failing to warn or instruct
    regarding risks . . . that should be . . . generally known by . . . foreseeable product users.”
    (emphasis added)). In some cases, what makes a danger obvious to the ordinary user
    of a product—the user’s knowledge and training—will also be what makes the danger
    commonly known in the community of ordinary users. See, e.g., 
    Sauder, 967 S.W.2d at 351
    (“No ordinary person trained to do the work Boyd and his crew were doing could
    have failed to appreciate the obvious risk.”). Thus, in cases in which the danger
    would be obvious or commonly known only because of specialized training or
    education, these two exceptions to the duty to warn will more or less collapse into
    one.
    15
    Johnson’s marketing defect theory about the terminal venting was that
    Emerson should have warned him about the risks of terminal venting, specifically, the
    nature of its danger and how to avoid it. As part of this theory, Johnson argued that
    Emerson should have warned that certain noises indicate that a terminal vent is
    imminent, so that a serviceperson who heard the noises would recognize the
    immediate danger and avoid it.       See Restatement (Third) of Torts: Prod. Liab.
    § 2 (stating that a product has a marketing defect from a lack of adequate instructions
    or warnings “when the foreseeable risks of harm posed by the product could have
    been reduced or avoided by the provision of reasonable instructions or warnings” and
    the lack of warning makes the product not reasonably safe). In response to this
    theory, Fusite and Emerson asserted that Emerson had no duty to warn Johnson
    about the risk of terminal venting because: (1) Johnson, an experienced HVAC
    technician, was a sophisticated user for whom the risk of terminal venting should
    have been foreseeable and (2) Johnson actually knew of the risk of terminal venting
    and therefore did not need any warning. Johnson’s position at trial was that what the
    noises coming from the Emerson compressor indicated is neither obvious nor
    commonly known in the community, and if he had been warned that the noises he
    heard indicated the compressor was in fact about to vent through its terminal, he
    could have avoided harm. After exhaustively examining the record, we hold that
    Johnson produced more than a preponderance of evidence to support his position,
    and the evidence was not so contrary to the overwhelming weight of all the evidence
    16
    that the jury’s finding should be set aside. See Cont’l 
    Coffee, 937 S.W.2d at 450
    ; 
    Pool, 715 S.W.2d at 635
    .
    (i)   Johnson’s Evidence Supported His Duty-to-
    Warn Theory.
    Both Johnson and Morris testified at trial they heard sounds coming from the
    Emerson compressor prior to the terminal vent.
    Johnson testified that when he arrived at the Miller Food Mart on August 3, he
    replaced the fuses, but the HVAC unit still would not run. Morris went downstairs to
    the store to check the electric breaker and had to flip it back on. This allowed the
    HVAC unit to start, at which point Johnson heard a noise. Johnson described it as a
    rumbling sound, “an unusual noise.” “It didn’t sound threatening or serious or
    anything,” and so he “figured [they] could track it down.” He began trying to isolate
    the sound. After he removed power to the HVAC unit’s two compressors, the noise
    stopped, which told him the noise was coming from one of the compressors.
    Johnson reconnected the new Emerson compressor, and the noise started again,
    which told him the newly-installed compressor was making the noise. He testified
    that he then removed the compressor’s fuse box and the compressor’s terminal cover
    to get an ohm reading. Before Johnson had a chance to get that reading, the Emerson
    compressor vented through its terminal.
    Johnson told the jury that he did not know what the noises signified and if he
    had known the noises meant the Emerson compressor was about to vent, he would
    17
    have acted differently, including allowing the compressor to cool down before trying
    to work on it. Johnson explained, “[T]he noise was—to me, when I walked up to it,
    you have to determine is this noise a kitten—you know, a meow from a kitten, or is it
    a pit bull.” “If [the noise] is a kitten, you have time to search [for] the problem. But
    if it was sounding, you know, very dangerous, then, of course, no.”
    Reinforcing Johnson’s testimony, Morris testified that he also heard noises
    coming from the Emerson compressor. At one point after the incident, he reported
    that he had heard popping sounds prior to the vent. At trial, Morris said the noise he
    heard was “hard to describe,” “some kind of thud or something,” and “nothing [he]
    ever heard before.”
    The evidence at trial showed, and the parties do not dispute, that the noises
    did, in fact, indicate that the compressor was about to vent. Johnson introduced into
    evidence the service handbook for a compressor made by a competitor of Emerson’s.
    In a section dedicated to terminal venting appears the warning: “To reduce the risk of
    electrocution or serious burns or death from terminal venting with ignition: . . . Be
    alert for sounds of arcing (sizzling, sputtering[,] or popping) inside the compressor.
    IMMEDIATELY GET AWAY if you hear these sounds.”
    (ii)   Fusite and Emerson’s Evidence Supported
    Johnson’s Duty-to-Warn Theory.
    Evidence provided at trial by witnesses representing Fusite and Emerson
    further supported Johnson’s duty-to-warn theory. Even though Ken Monnier, Vice
    18
    President of Engineering for Emerson, testified that he did not think it would be
    appropriate for Emerson to provide a warning like its competitor because the HVAC
    units in which Emerson compressors are installed generate louder noise than the
    HVAC units in which its competitor’s compressors are installed (implying that a user
    of Emerson’s compressor would not be able to hear the tell-tale signs of an imminent
    terminal vent, and therefore a warning about the noise would be unnecessary and
    useless), Monnier did not provide a basis for this implication. In fact, Monnier
    offered no testing or other data showing that such a noise could not be heard either
    over a running HVAC unit with an Emerson compressor or an HVAC unit with an
    Emerson compressor that was being serviced and was disconnected from a power
    source, and he acknowledged that Johnson and Morris both heard a noise.
    Further, John Gephart, Jr., a retired Emerson employee and current consulting
    engineer for Emerson, agreed that Emerson does not provide warnings or
    instructions to servicepersons regarding terminal venting which inform them that they
    should be alert for sounds coming from inside the Emerson compressor or to get
    away from the compressor if they hear such sounds. According to Gephart, “It
    would be possibly a good idea to do it.” Gephart did not know that such sounds
    indicated an imminent terminal vent. When he was asked whether, if Emerson knew
    that such sounds meant that a terminal vent is imminent, it should provide that
    information to servicepersons, he responded, “We should.” Indeed, Gephart stated
    that Emerson does not provide any warnings about the dangers associated with
    19
    terminal venting since “we’ve not considered it to be a big issue because we have very
    few instances of it in the field.”
    In addition, Fusite and Emerson called Christopher Lucas, chair of the HVAC
    program at Texas State Technical College, to testify about standard training for
    HVAC servicepersons. He testified that he did not know that sounds like sizzling,
    sputtering, and popping signal that a compressor is about to vent through its terminal.
    (iii)   The Evidence Does Not Show that Johnson Knew of
    the Terminal Venting Risk Before His Injury.
    Despite the testimony of their own witnesses supporting a duty to warn, Fusite
    and Emerson now argue that the evidence shows that Johnson knew that the
    compressor’s internal pressure created a risk of venting, as Morris testified that
    Johnson warned him not to stand in front of the Emerson compressor because
    compressors can terminally vent.10 However, Morris’s testimony in context shows
    only that Johnson was aware that it is possible for compressors to vent in some
    circumstances. Neither this part of Morris’s testimony nor his testimony as a whole
    shows that Johnson was aware that the Emerson compressor in this case was actually
    about to vent through the terminal. In fact, Morris’s testimony shows the opposite.
    10
    Morris testified about where this conversation took place—the Miller Food
    Mart—but he did not say when or on what day it occurred or if Johnson said this
    about any particular compressor. Johnson testified that he had told Morris that pins
    could shoot out, but he was not asked when this conversation occurred, and he also
    testified that he believed the risk of venting was associated primarily with a type of
    compressor older than the Emerson compressor at issue.
    20
    And, the warning that Johnson contended Emerson should provide was not merely
    that compressors can vent in some circumstances. Rather, Johnson contended that
    Emerson should warn of the dangers of venting and how to avoid those dangers.
    Obviously, knowing that an event may happen in some circumstances is quite
    different from knowing that the event is about to occur, and Johnson’s position at
    trial was that Emerson should have warned about the risks the noises represented.
    In summary, Johnson put on evidence at trial that certain noises signify an
    imminent terminal vent and that such noises occurred in this case. Regardless of
    whether Johnson or the community of HVAC servicepersons knew that compressors
    can vent in some circumstances, the evidence at trial established that it is not
    commonly known or obvious that if the serviceperson hears certain noises, venting is
    no longer a theoretical possibility but an imminent occurrence. Johnson’s testimony
    showed that he did not have this knowledge. We therefore cannot say that because
    the danger was obvious, commonly known, or actually known, Emerson had no duty
    to provide the kind of warning Johnson asserted it should provide.
    d.     Fusite and Emerson’s Causation Argument is Without
    Merit.
    In two short paragraphs under their first issue, Fusite and Emerson also make a
    conclusory argument (with no citations to authority) that because Johnson was aware
    of the risks of terminal venting, he could not show causation. This argument is
    unconvincing.
    21
    To prove causation in a marketing defect claim, “[a] plaintiff must show that
    adequate warnings would have made a difference in the outcome, that is, that they
    would have been followed.” Gen. Motors Corp. v. Saenz, 
    873 S.W.2d 353
    , 357 (Tex.
    1993). However, because of the difficulties of proving causation, the law provides a
    rebuttable presumption, arising when the defendant provided no warning, that the
    plaintiff would have read and heeded an adequate warning, and the same presumption
    arises when a defendant provided an inadequate warning that failed to give the
    plaintiff information that might have prevented the harm or injury that occurred. 
    Id. at 359.
    As we have said, even if the evidence showed that Johnson was aware of the
    possibility that the compressor could vent, the evidence showed that he did not know
    that a terminal vent was actually about to happen and did not know that the noises he
    heard were warnings of that imminent danger.        We cannot say that Fusite and
    Emerson negated causation by reference to Johnson’s knowledge. And Johnson
    testified that he would have reacted differently had he known what the noises he
    heard meant, including letting the compressor cool before performing further work.
    Fusite and Emerson point to no evidence in the record to refute that testimony.
    More importantly, in their initial brief, Fusite and Emerson neither mention the
    presumption arising from the failure to provide adequate instructions nor argue why it
    did not apply or how the evidence rebutted the presumption. See 
    id. Johnson argued
    at trial that Emerson needed to provide a warning that would have informed him of
    22
    the fact that the noises he heard meant that the compressor was about to vent so that
    he could avoid the danger. It is undisputed that Emerson did not provide any such
    warning and provided no explicit warnings about terminal venting. The Emerson
    compressor displayed a symbol meant to warn of the general possibility of explosions,
    but it did not include any warning specifically about terminal venting or how to avoid
    dangers from a terminal vent. We have upheld the trial court’s determination that
    Emerson had a duty to provide Johnson with a warning that would have enabled him
    to avoid harm and the jury’s finding that it failed to do so; the presumption therefore
    applied unless Emerson rebutted the presumption. See 
    id. Stated again,
    when the
    presumption is not rebutted, the law presumes causation.             
    Id. Yet Fusite
    and
    Emerson made no mention of this presumption in their opening brief.
    Fusite and Emerson address the presumption briefly in their reply brief,
    arguing that they gave some warning (a warning to wear goggles and a symbol meant
    to indicate that an explosion could happen) and asking us to determine that the
    evidence negated the presumption. However, they waived their arguments by failing
    to raise them in their opening brief and failing to cite any authority to support their
    argument that they rebutted the presumption. See Pineridge Assocs., L.P. v. Ridgepine,
    LLC, 
    337 S.W.3d 461
    , 472 n.10 (Tex. App.—Fort Worth 2011, no pet.) (holding an
    appellant waives consideration of a contention the appellant raises for the first time in
    a reply brief); see also Fredonia State Bank v. Gen. Am. Life Ins. Co., 
    881 S.W.2d 279
    , 284–
    23
    85 (Tex. 1994) (citing Tex. R. App. P. 38.1 and recognizing long-standing rule that
    error may be waived through inadequate briefing).
    e.    We Uphold the Jury Verdict on Johnson’s Marketing
    Defect Claim Based on Emerson’s Failure to Warn of
    the Risk of Terminal Venting.
    The evidence is legally and factually sufficient to show that: (1) Emerson had a
    duty to warn Johnson of the risk of an imminent terminal vent should he hear the
    Emerson compressor emit unusual noises, a risk he was unaware of despite his
    expertise and a risk that is not obvious in the HVAC community; (2) Emerson failed
    to provide such warning; and (3) Emerson’s failure to warn of the risk of the
    imminent terminal vent was a producing cause of Johnson’s injuries. Fusite and
    Emerson do not otherwise challenge the sufficiency of the evidence supporting the
    jury finding on Johnson’s claim based on the failure to warn of the imminent venting
    risk.
    Because the single jury finding on the failure-to-warn claim regarding imminent
    venting could alone support the jury’s finding Emerson liable, we need not address
    whether Emerson had a duty to warn about the need to conduct electrical checks,
    whether the lack of a warning about electrical checks made the compressor
    unreasonably dangerous, or whether the evidence supports a finding of causation
    from the lack of a warning about electrical checks. See Tex. R. App. P. 47.1. Thus, we
    overrule Fusite and Emerson’s first issue.
    24
    2.     The Jury was Correctly Instructed Regarding Johnson’s
    Marketing Defect Theory Grounded in Emerson’s Failure to
    Warn of the Risk of Imminent Venting.
    In their second issue, Fusite and Emerson argue that the jury charge was
    erroneous on Johnson’s strict products liability marketing defect claims because it
    wrongly treated Johnson as unsophisticated. We address this issue only as to the
    claim alleging Emerson’s failure to warn of the terminal venting risk. See 
    id. Fusite and
    Emerson point out that the jury was instructed that a product is unreasonably
    dangerous if it is dangerous to an extent beyond that contemplated by “the ordinary
    user” with the ordinary knowledge common to the community and that instructions
    are adequate when they are comprehensible to “the average user” and convey an
    indication of the danger to the mind of “a reasonably prudent person.” Although
    these instructions provided to the jury follow the Texas Pattern Jury Charge for strict
    products liability claims, Comm. on Pattern Jury Charges, State Bar of Tex., Texas
    Pattern Jury Charges:   Malpractice, Premises & Products PJC 71.5 (2016), Fusite and
    Emerson contend that these instructions “lower the bar” because “Johnson was no
    ordinary user,” and the instructions fail to let the jury account for Johnson’s training
    and experience.
    Instead, Fusite and Emerson further contend that the trial court should have
    given the jury this instruction:
    When the foreseeable users of a product have special training, a
    supplier has no duty to warn of risks that should be obvious to them,
    even if persons without such training would not appreciate the risks.
    25
    According to Fusite and Emerson, this instruction—and not the standard
    instruction—should have been given by the trial court because it is in line with the
    holding of the Texas Supreme Court in Humble Sand & Gravel, Inc. v. Gomez. We
    disagree.
    There are several problems with Fusite and Emerson’s contention.            First,
    Humble Sand is easily distinguishable.    Unlike this case, Humble Sand focused on
    whether a supplier has a duty to warn third parties—its customers’ employees—not,
    as here, on whether a distributor has a duty to warn its own customers. Humble 
    Sand, 146 S.W.3d at 194
    –95.
    Second, Humble Sand does not require the jury instruction requested by Fusite
    and Emerson, nor does it conflict with the instructions given in this case. That case
    focused on the issue of duty (specifically the duty of silica suppliers to provide
    warnings) and did not analyze what instructions should be given to the jury in
    marketing defect cases. See 
    id. at 182.
    Third, assuming that instructing the jury regarding duty would have been
    acceptable in the context of this case, 11 it was unnecessary, as the instructions to
    which Fusite and Emerson objected essentially gave the jury the same information.
    The instructions told the jury that a product was unreasonably dangerous if it was
    11
    As Fusite and Emerson acknowledge in their brief under their first issue, the
    jury usually should not be asked to determine a defendant’s duty in a marketing defect
    case. See Seifried v. Hygenic Corp., 
    410 S.W.3d 427
    , 431 (Tex. App.—Houston [1st Dist.]
    2013, no pet.) (noting that whether a legal duty to warn exists is a question of law).
    26
    dangerous beyond the contemplation of the ordinary user. Here, the instructions did
    not instruct the jury to consider what dangers would be contemplated by the average
    person. Rather, as we discussed above, the average or ordinary user of a product is
    not necessarily the same as an ordinary person. Contrary to the contention of Fusite
    and Emerson, the only evidence at trial was that Johnson was in fact an ordinary user
    of an HVAC compressor.12 The instructions the trial court gave to the jury in this
    case specifically take into consideration the specialized training of the compressor’s
    ordinary user and do not “wrongly lower the bar.”
    Fourth, the requested instruction on duty would not have helped Fusite or
    Emerson because the evidence shows that foreseeable users with the specialized
    training relevant in this case do not know that certain noises warn of an imminent
    terminal vent. Thus, the jury, had it been specifically instructed to consider the
    specialized training of HVAC servicepersons, would have had to consider the
    undisputed evidence that this information was not commonly known. Even if the
    trial court did err, on this record, we cannot say that the exclusion of the requested
    instruction was harmful. See Tex. R. App. P. 44.1; Reinhart v. Young, 
    906 S.W.2d 471
    ,
    473 (Tex. 1995) (explaining jury charge error is reversible only if it was reasonably
    calculated to and probably did cause the rendition of an improper judgment); Lone
    12
    Fusite and Emerson acknowledge in their brief that Johnson was an ordinary
    user of an HVAC compressor when, arguing about the duty to warn under their first
    issue, they assert that service work on commercial HVAC units like the one at the
    Miller Food Mart should only be performed by trained personnel like Johnson.
    27
    Star Gas Co. v. Lemond, 
    897 S.W.2d 755
    , 756 (Tex. 1995) (holding any error in
    instructing the jury in a marketing defect case was harmless).
    We hold that the trial court did not abuse its discretion in its rulings on Fusite
    and Emerson’s requested instruction and objection to the charge. See Sw. Energy Prod.
    Co. v. Berry-Helfand, 
    491 S.W.3d 699
    , 727 (Tex. 2016) (reviewing a trial court’s jury-
    charge rulings for abuse of discretion).
    We overrule Fusite and Emerson’s second issue.
    C.     The Evidence Sufficiently Supports the Jury’s Finding on
    Johnson’s Design Defect Claim Against Fusite, Dr. Russell’s
    Testimony Was Properly Admitted, and the Jury Charge Was Not
    Erroneous.
    In their third, fourth, and fifth issues, Fusite and Emerson contend that:
    (1) the trial court erred in allowing the plaintiff’s expert to testify about what a design
    defect is; (2) the evidence is legally and factually insufficient to support the findings of
    liability on the design defect theories; and (3) the jury charge was erroneous as to the
    design defect theories. Because we have already upheld the jury’s finding Emerson
    liable on Johnson’s marketing defect claim based on its failure to warn of an imminent
    vent, we address these three issues only in terms of the claims, evidence, and design
    defect finding against Fusite. See Tex. R. App. P. 47.1.
    1.     Sufficient Evidence Supports the Jury’s Design Defect
    Finding Against Fusite.
    The jury found that at the time the Fusite terminal left Fusite’s possession, it
    had a design defect that was a producing cause of the occurrence or injury in question.
    28
    In their fourth issue, Fusite and Emerson challenge the jury’s finding that the Fusite
    terminal had a design defect.      They argue that there is no evidence of a safer
    alternative design for the Fusite terminal because there is no evidence that Fusite’s
    700 series terminal would have prevented or significantly reduced the risk of
    Johnson’s injury.    This is a challenge to the legal sufficiency of the evidence
    supporting the jury’s finding. See In re K.M.L., 
    443 S.W.3d 101
    , 112 (Tex. 2014) (“Our
    traditional legal sufficiency—or ‘no evidence’—standard of review upholds a finding
    supported by ‘(a)nything more than a scintilla of evidence.’”). We therefore look to
    see if more than a scintilla of evidence supports the jury’s finding, considering
    evidence favorable to the jury’s finding unless a reasonable jury could not and
    disregarding evidence contrary to the finding unless a reasonable factfinder could not.
    Cent. Ready 
    Mix, 228 S.W.3d at 651
    . We hold that there was some evidence to support
    the jury’s finding that Fusite’s 700 series terminal is a safer design alternative to the
    Fusite terminal used in the Emerson compressor.
    a.     Defective Design Liability Requires a Showing of a
    Safer Alternative Design.
    “In determining whether a product is defectively designed, the jury must
    conclude that the product is unreasonably dangerous as designed, taking into
    consideration the utility of the product and the risk involved in its use.” 
    Grinnell, 951 S.W.2d at 432
    . In evaluating a product’s risk and utility, Texas courts have
    considered, among other factors, “the availability of a substitute product which would
    29
    meet the same need and not be unsafe or unreasonably expensive.” 13 
    Id. The Texas
    Legislature codified this “safer alternative” requirement of design defect claims in
    Section 82.005 of the Texas Civil Practice and Remedies Code. Tex. Civ. Prac. &
    Rem. Code Ann. § 82.005. Under that section, if a plaintiff’s products liability claim
    alleges a design defect, the plaintiff must prove by a preponderance of the evidence
    that “(1) there was a safer alternative design; and (2) the defect was a producing cause
    of the personal injury . . . for which the claimant seeks recovery.” 
    Id. § 82.005(a).
    The
    statute defines “safer alternative design” to mean a product design that in reasonable
    probability:
    The five factors of risk and utility that Texas courts consider in design defect
    13
    cases are:
    (1) the utility of the product to the user and to the public as a
    whole weighed against the gravity and likelihood of injury from its use;
    (2) the availability of a substitute product which would meet the same
    need and not be unsafe or unreasonably expensive; (3) the
    manufacturer’s ability to eliminate the unsafe character of the product
    without seriously impairing its usefulness or significantly increasing its
    costs; (4) the user’s anticipated awareness of the dangers inherent in the
    product and their avoidability because of general public knowledge of
    the obvious condition of the product, or of the existence of suitable
    warnings or instructions; and (5) the expectations of the ordinary
    consumer.
    
    Grinnell, 951 S.W.2d at 432
    . Regardless of whether a plaintiff must establish each
    factor to recover, see Temple EasTex, Inc. v. Old Orchard Creek Partners, Ltd., 
    848 S.W.2d 724
    , 732 (Tex. App.—Dallas 1992, writ denied) (stating that a plaintiff need not prove
    up every factor), proof of a safer alternative design is required. Tex. Civ. Prac. &
    Rem. Code Ann. § 82.005(a) (West 2017).
    30
    (1) would have prevented or significantly reduced the risk of the
    claimant’s personal injury, property damage, or death without
    substantially impairing the product’s utility; and
    (2) was economically and technologically feasible at the time the
    product left the control of the manufacturer or seller by the application
    of existing or reasonably achievable scientific knowledge. 14
    
    Id. § 82.005(b);
    see also Restatement (Third) of Torts: Prod. Liab. § 2 (stating that a
    product has a design defect “when the foreseeable risks of harm posed by the product
    could have been reduced or avoided by the adoption of a reasonable alternative design
    by the seller or other distributor . . . and the omission of the alternative design renders
    the product not reasonably safe”).
    Here, Johnson alleged that Fusite manufactures a terminal that satisfied these
    requirements and that it did so at the time the terminal used in the Emerson
    compressor left Fusite’s control. Fusite and Emerson do not contend on appeal that
    the safer alternative design Johnson relied on was not economically or technologically
    feasible. Rather, they focus on the first part of the definition of “safer alternative
    design,” arguing that Johnson did not show that a proposed safer alternative would
    have prevented or significantly reduced the risk of his injury.
    b.     Johnson’s Safer Design Alternative Was the Fusite
    700 Series.
    The Fusite terminal used in the Emerson compressor was from Fusite’s
    600 series of terminals. At trial, Johnson produced evidence about a different series
    The jury charge tracked this statute.
    14
    31
    of Fusite terminals, the 700 series, which he contended was a safer alternative design.
    Johnson’s theory was based on testing in which the 600 series vented, but the
    700 series did not. Fusite and Emerson disputed the applicability of that study,
    arguing that the study showed a difference only when the pins in the terminals being
    tested had a solid stainless steel core, and there is no evidence that the 700 series had a
    lower risk of terminal venting than the 600 series when copper-core pins are used, as
    they were in the Fusite terminal that vented in this case.
    c.     Johnson Produced Sufficient Evidence of a Safer
    Design.
    Fusite produced a 500 series of terminals that used straight conductor pins. In
    the 600 series and the 700 series terminals, Fusite uses grooved pins.              Fusite
    documentation discussing the terminal pins refers to this groove as a fuse-like link
    because, though not actually a fuse, the groove acts as the equivalent of a fuse: before
    the pins overheat enough to melt the glass they sit in, the pins burn through at the
    groove, opening the circuit and cutting the terminal (and thus the attached
    compressor) off from its power source. In the 600 series, that groove is on the part
    of the pin that sits inside the compressor shell. In the 700 series, that groove is on the
    part of the pin that lies outside of the compressor shell.
    Dr. Russell testified that having the groove on the outside of the compressor is
    a safer design alternative. Fusite and Emerson assert that Dr. Russell’s opinion relied
    on Fusite’s testing and that the testing did not support the jury’s finding. Fusite
    32
    conducted several tests on its 600 series and 700 series terminals. Some of those tests
    showed that the 700 series terminals were far less likely to vent than the 600 series
    terminals, and Dr. Russell discussed that testing data at trial, describing the 700 series
    as “substantially” outperforming the 600 series.           In one of those tests, “the
    700 series . . . never showed a loss of integrity between the pin and the glass or a loss
    of the pin.”    And, an internal Fusite memo described the 700 series as having
    performance enhancements compared to the 600 series.
    But, Fusite and Emerson argue, the terminals in that testing used pins with
    stainless steel cores. They point out that Fusite also did testing using terminals with
    pins that had copper cores, like the pins in the Fusite terminal that vented in this case,
    and they argue that there was no difference between the 600 series and the 700 series
    in those tests—none of the terminals with the copper-core pins in either series vented
    in Fusite’s testing. Fusite elicited testimony on that point at trial.
    Fusite and Emerson’s argument understates the evidence supporting the jury’s
    finding. First, Dr. Russell’s opinion testimony did more than just cite Fusite’s testing
    data. Rather, Dr. Russell explained why putting the pin’s groove on the outside of the
    compressor is safer than having the groove on the inside:
    [I]nside of the compressor . . . is . . . where we have pressure and
    we have our fluids. . . . When this [groove] burns through, it is on the
    inside of the compressor which means we have a heating, a burning and
    a separation of load which implies also an [electrical] arc that’s going to
    occur on the inside of the compressor where the very fluids are and the
    pressure is and other things going on, right?
    33
    I consider that not a good idea. You don’t want to be creating an
    intentional separation and an arc and heating and so forth on the inside.
    By having it on the outside of the compressor, the same effect is
    achieved by having [the groove part of the pin] burn through when you
    have too much current that would be coming in.
    At the same time, this is on the outside, so you are not inside the
    compressor, you are not heating up the fluid, you are not creating an arc
    inside, you’re not doing those things I talked about a while ago. So in
    that sense alone, I believe it’s a superior design to have the fused
    element be placed on the outside of the compressor.
    He added, “All of this [the rest of the compressor] would remain integral structurally,
    structural integrity would not be compromised.” He further testified,
    Whereas in the 600 [series] we have the problem again, it’s under
    pressure. [The groove] is on the inside of the—where the oils and fluids
    and so forth are, it is arcing, and it is also affecting this—would affect
    part of this ceramic glass and part of the area where you are trying to
    hold on to the . . . pin.
    So by appropriately removing the fuse completely away from any
    of the glass structure in any sense and not having it associated with the
    fluids, I believe you have a superior design.
    ....
    [I]f [burning through the groove] disconnects the power on the
    outside, any separating arc that might occur when the conductors
    separate would simply be benign because it’s on the outside, whereas on
    the inside it is contributing to the bad things that are happening inside
    the compressor.
    ....
    I believe that the 700 series design will have superior design, will
    have superior performance leading to less terminal venting with the
    properly designed external fuse.
    34
    Second, Fusite and Emerson try to limit the reading of their testing data, but the
    jury did not have to accept their interpretation. See Golden Eagle Archery, Inc. v. Jackson,
    
    116 S.W.3d 757
    , 761 (Tex. 2003). Fusite and Emerson are correct that the jury had
    evidence that copper-core pins carry electrical current more efficiently than stainless-
    steel-core pins and are consequently far less likely to lead to a terminal vent than are
    stainless-steel-core pins. But what happens when copper-core pins do overheat?
    Here, as the jury knew, having copper-core pins in the Fusite terminal did not stop a
    terminal vent. Rather, the jury had to consider whether, given that known outcome,
    the risk of a terminal vent would have been substantially reduced by having the pins’
    fuse-like groove on the outside of the compressor shell. The jury had evidence that
    copper-core pins are less likely to overheat but, all other things being equal, if a
    terminal’s pins overheat (as they did in this case), having the groove on the outside of
    the compressor is less likely to lead to a terminal vent than having the groove on the
    inside. While some of Fusite’s testing showed that copper-core pins were less likely to
    overheat in the first place, that testing did not discount Fusite’s other testing showing
    that when terminal pins do overheat (as the stainless-steel-core pins in the testing did),
    having the groove outside the compressor substantially reduces the chance of a
    terminal vent occurring.     Dr. Russell also interpreted the testing data that way,
    testifying that “[t]he way I interpreted the data was that there was a substantial
    difference in the compromise of the integrity of the seal whether the fuse was on the
    outside or the inside.” The jury could have accepted that interpretation. Fusite’s
    35
    testing data did not contradict Dr. Russell’s testimony interpreting that data. It did
    not contradict Dr. Russell’s explanation for why having the groove on the outside of
    the compressor is safer than having the groove on the inside.
    Third, Johnson introduced evidence that Dr. Russell’s opinion has support in
    the industry. In 1994, Copeland Company, a compressor company that Emerson
    subsequently bought,15 applied for and was ultimately issued a patent for a terminal
    with grooves on pins outside of the compressor. Johnson introduced the patent at
    trial. The patent explained why having the groove on the outside of the compressor
    shell is an improvement over having the groove on the inside: it helps prevent
    terminal venting. The patent states,
    One problem associated with these prior art terminals is that in
    response to unexpected abnormally high over[-]current conditions . . .
    the conductor pins may heat up to the point of melting the conductor
    pins themselves or the surrounding glass-to-metal seals, thereby resulting
    in the failure or leaking of the hermetic terminal and thus the hermetic
    shell [i.e., terminal venting].
    One method for preventing occurrence of [terminal venting] is to
    use a fuse-like link within the conducive path of each conductor
    pin. . . . . When the fuse-like area of the conductor pin is located on
    the inside of the shell, this separating of the fuse-like area of the
    conductor pin effectively disconnects power to the compressor but it
    also leaves the opportunity for the pin to be pushed out of the body
    of the terminal causing the leakage or failure of the hermetic terminal
    and thus the hermetic shell. . . . Accordingly, there is a need for
    providing a conductor pin having an integral fuse-like link which
    maintains the integrity of the hermetic shell upon failure of the fuse-like
    15
    One witness testified that Fusite acquired Copeland, but three witnesses
    testified that Copeland was acquired by Emerson.
    36
    link. Preferably, the fuse-like link would also be located on the
    outside of the shell. [Emphasis added.]
    Thus, in the terminal that is the subject of the patent, the fuse-like groove is located
    on the outside of the compressor shell. While the patented terminal has other safety
    features not involved in the 700 series, the patent’s language reflects an
    acknowledgement that having the fuse-like groove on the inside of the compressor
    shell can create a safety issue.
    Finally, Johnson produced evidence that at one point, Fusite told its customers
    that having the fuse-like groove on the outside of the compressor shell was an
    improvement over having the groove on the inside. Fusite produced a PowerPoint
    document to show to its customers about the 700 series. The document described
    the grooved pins of the 600 series and the 700 series as “product enhancements” over
    the straight pins used in a previous series and the external groove of the 700 series as
    “performance plus.”        The document also described the 700 series “design
    enhancements,” such as “optimizes fuse-like groove performance,” “provides
    external current disconnect,” and “improves groove response time.” [Emphasis
    added.]    The document additionally described the 700 series as having a 90%
    improvement in the groove function, that is, in the groove opening and cutting off
    the power supply. The presentation did not discuss the difference between stainless-
    core pins and copper-core pins. Thus, Fusite acknowledged at the time of the
    presentation that an external groove optimizes the fuse-like performance of the
    37
    groove over an internal groove—or, at least, that is what it told its customers at the
    time.
    Because some evidence supports the jury’s finding that the 700 series is a safer
    design alternative, we will not throw out this finding, and we overrule this portion of
    Fusite and Emerson’s fourth issue.
    2.     Fusite and Emerson’s Remaining Arguments About Dr.
    Russell’s Testimony Are Unavailing.
    a.    Fusite and Emerson Did Not Demonstrate that Dr.
    Russell’s Testimony Should Have Been Excluded.
    In their third issue, Fusite and Emerson argue that Dr. Russell’s testimony
    should have been excluded because Johnson failed to demonstrate the reliability of
    the opinion. Some of their arguments under this issue relate to Dr. Russell’s opinion
    about how the compressor contents ignited, an opinion that is not relevant to the
    terminal design defect theory, as we discuss in more detail below.         Nor, as we
    explained above, do we address their arguments related to the Emerson compressor
    design defect claim because we have already upheld the jury’s finding that Emerson is
    liable for failing to warn Johnson of the risk of an imminent vent. See Tex. R. App. P.
    47.1. We will address the remaining arguments under this issue.
    (i)    Dr. Russell Addressed the Relevant Factors of
    Risk-Utility.
    Fusite and Emerson argue that whether a product is defectively designed so as
    to render it unreasonably dangerous is determined by analyzing the five factors of a
    38
    risk-utility analysis, that Dr. Russell failed to conduct any risk-utility analysis, that he
    “failed to . . . inquire whether the challenged product designs were unreasonably
    dangerous,” and that the trial court should have granted their pretrial motion to
    exclude Dr. Russell’s testimony on that basis. See 
    Grinnell, 951 S.W.2d at 432
    (setting
    out the five factors of a risk-utility analysis).
    Johnson never disputed the utility of HVAC compressors. As for risk, in Dr.
    Russell’s affidavit, attached along with his report to Johnson’s response to Fusite and
    Emerson’s motion to exclude, Dr. Russell discussed “the severe and well[-]known
    hazard of terminal venting.” He further discussed the availability of safer alternative
    designs for the Emerson compressor and the Fusite terminal—specifically noting that
    “the industry has designed electrical terminals to eliminate or significantly reduce the
    hazard of terminal venting”; the economic and technical feasibility of his proposed
    alternatives; and the need for warning about the dangers of terminal venting. In
    discussing the need for warnings, he noted that an industry group recommends
    warning of terminal venting, described what that industry group proposes
    manufacturers include in their warnings, and stated that an Emerson competitor
    includes those warnings. Dr. Russell therefore addressed the factors that Fusite and
    Emerson contend he needed to balance in order to determine that the Emerson
    compressor, with its Fusite terminal, was unreasonably dangerous. See Genie Indus., Inc.
    v. Matak, 
    462 S.W.3d 2
    , 12 (Tex. 2015) (weighing the five factors to determine that,
    based on the record on appeal, the product at issue was not unreasonably dangerous).
    39
    (ii)   Dr. Russell Did Not Opine that Any Accident
    Means a Defect Exists.
    Next, Fusite and Emerson argue that the premise for Dr. Russell’s opinion on
    design defect was the notion that there is a defect whenever there is any product-
    related accident.    In making this argument, they point to Dr. Russell’s affidavit
    attached to Johnson’s response to their motion to exclude. They misinterpret that
    affidavit. In that document, Dr. Russell stated that the Emerson compressor’s initial
    internal failure was not a design defect. Rather, the compressor’s “not failing in a safe
    manner”—that is, the design that allowed the terminal venting—was the design
    defect. In his affidavit, Dr. Russell explained that Emerson’s corporate representative
    had been aware of the hazard of terminal venting for decades and that his opinion on
    the cause of the venting was “consistent with the problems described in Emerson’s
    own patents.”       He then described safer alternative designs for terminals and
    compressors that he believed would have eliminated the hazard in this case. He
    further stated that “[g]iven a known hazard (such as terminal venting), manufacturers
    should design away the hazard, or if it cannot be eliminated by design, then warn
    about the hazard,” and he discussed Emerson’s failure to follow industry standards
    for warning about terminal venting. It is clear from reading Dr. Russell’s affidavit as a
    whole that his opinion was not that there is a design defect any time a product is
    involved in an accident.
    40
    (iii)   Fusite and Emerson Misinterpret Dr. Russell’s
    Testimony.
    Finally, Fusite and Emerson address Dr. Russell’s trial testimony, arguing that it
    “clearly rested on the engineering (nonlegal) notion that a design is defective unless it
    ‘eliminate(s) the hazard.’” Thus, they argue, “[t]he basis for the opinion was an
    indisputable misapplication of the legal principle that products are not required to be
    risk-free.   His misapplication of legal principles renders his opinion hopelessly
    unreliable.” However, Fusite and Emerson misconstrue Dr. Russell’s testimony. In
    the testimony they point to, Dr. Russell stated that as a design engineer, once a danger
    such as terminal venting is identified, the next step “is to do everything you can to
    design the product to eliminate the hazard so that nobody ever has to consider it or
    think about it again.” He then discussed the other possible options for making the
    product less dangerous from most effective to least effective, from safeguarding
    against the hazard, to warning about the hazard, to training individuals to use the
    product. He did not testify that a product automatically has a design defect if the
    identified hazard cannot be eliminated.
    b.     Johnson’s Design Theory Does Not Fail on Causation.
    Fusite and Emerson argue that Johnson’s causation evidence fails because
    Johnson’s theory of how the compressor contents ignited came only from Dr. Russell,
    and Dr. Russell could not explain the ignition source. Dr. Russell’s testimony about
    the cause of ignition controverted Fusite and Emerson’s theory that the contents of
    41
    the vent ignited because the compressor was still connected to a power source when
    Johnson removed the terminal’s cover. The cause of the fire was irrelevant to
    Johnson’s design defect claims based on the Fusite terminal. Johnson’s claim was that
    with a different terminal, the terminal would have been significantly less likely to vent
    at all. If nothing leaked from the compressor, nothing could ignite. Thus, whether
    Dr. Russell had a good explanation for how the fire started is irrelevant. We therefore
    need not consider whether Dr. Russell was qualified to opine on the source of
    ignition. See Tex. R. App. P. 47.1. We overrule the remaining portions of Fusite and
    Emerson’s third and fourth issues.16
    3.     We Decline to Amend the Pattern Jury Charge for Design
    Defect Claims.
    Finally, Fusite and Emerson argue in their fifth issue that the jury should have
    been charged on the five factors of the risk-utility analysis for design defect claims
    discussed above. Because we have limited our discussion to the design defect claim
    raised against Fusite, we likewise address this issue only in terms of the jury charge
    pertaining to that claim (Question No. 1). See Tex. R. App. P. 47.1. Fusite and
    Emerson acknowledge that the Supreme Court of Texas has repeatedly refused to
    16
    Despite the wording of Fusite and Emerson’s fourth issue, we do not see in
    their brief a discussion challenging the factual sufficiency of the evidence supporting
    the design defect findings. To the extent that a factual sufficiency challenge is
    intertwined with their no-evidence discussion and challenge to Dr. Russell’s
    testimony, we hold that the evidence is also factually sufficient to support the jury’s
    design defect finding against Fusite. See 
    Pool, 715 S.W.2d at 635
    ; 
    Cain, 709 S.W.2d at 176
    ; 
    Garza, 395 S.W.2d at 823
    .
    42
    approve a design defect jury charge other than the standard one given in this case, but
    they argue that because the jury is required to consider the five factors, refusal to
    submit them in the charge was harmful error. See Genie 
    Indus., 462 S.W.3d at 10
    (“This
    balancing [of the five factors] is for the jury unless the evidence allows but one
    reasonable conclusion.”). We must disagree.
    Several decades ago, the Supreme Court of Texas approved a jury instruction
    for design defect strict products liability claims.         Turner v. Gen. Motors Corp.,
    
    584 S.W.2d 844
    , 851 (Tex. 1979). That instruction does not include the five factors.
    A few years later, that court again approved the same instruction.             Fleishman v.
    Guadiano, 
    651 S.W.2d 730
    , 731 (Tex. 1983). The next year, that court addressed the
    question of a proper design defect jury charge and emphasized that it meant what it
    said in Turner:
    If Turner was not sufficiently specific to advise the bench and bar
    that in strict liability cases the jury is not to be instructed with balancing
    factors, surely we have laid this matter to rest by our opinion in
    Fleishman[,] . . . where we again endorsed the submission as approved by
    Turner and upheld the trial court’s refusal to give any other instructions.
    The jury need not and should not be burdened with surplus
    instructions.
    Acord v. Gen. Motors Corp., 
    669 S.W.2d 111
    , 115–16 (Tex. 1984) (emphasis added).
    That instruction is what now appears in the Texas Pattern Jury Charges and what was
    given to the jury in this case.
    The Supreme Court of Texas has made itself abundantly clear on this issue. If
    there is to be a change in the jury charge for design defect claims, it must come from
    43
    that court. Lubbock Cty. v. Trammel’s Lubbock Bail Bonds, 
    80 S.W.3d 580
    , 585 (Tex.
    2002) (“It is not the function of a court of appeals to abrogate or modify established
    precedent.   That function lies solely with this Court.”) (citations omitted).        We
    overrule Fusite and Emerson’s fifth issue.
    II.   Fusite and Emerson Challenge the Legal and Factual Sufficiency of the
    Evidence Supporting Mental Anguish Damages.
    Fusite and Emerson argue in their sixth issue that the evidence is legally and
    factually insufficient to support the total findings of $5,000,000 in damages for mental
    anguish.
    A.     Mental Anguish Awards Must Be Supported by Evidence.
    To support an award of mental anguish damages, “[t]here must be both
    [1] evidence of the existence of compensable mental anguish and [2] evidence to
    justify the amount awarded.” Hancock v. Variyam, 
    400 S.W.3d 59
    , 68 (Tex. 2013). The
    evidence must establish a relatively high degree of mental pain and distress or a
    substantial disruption in the plaintiff’s daily routine.      Parkway Co. v. Woodruff,
    
    901 S.W.2d 434
    , 444 (Tex. 1995). However, “‘some types of disturbing or shocking
    injuries have been found sufficient to support an inference that the injury was
    accompanied by mental anguish.’”         Fifth Club, Inc. v. Ramirez, 
    196 S.W.3d 788
    ,
    797 (Tex. 2006) (quoting Parkway 
    Co., 901 S.W.2d at 444
    ); see also City of Tyler v. Likes,
    
    962 S.W.2d 489
    , 495 (Tex. 1997) (“Where serious bodily injury is inflicted, . . . we
    44
    know that some degree of physical and mental suffering is the necessary result.”
    (citation and internal quotation marks omitted)).
    In awarding mental anguish damages, “[j]uries cannot simply pick a number
    and put it in the blank.” Saenz v. Fid. & Guar. Ins. Underwriters, 
    925 S.W.2d 607
    ,
    614 (Tex. 1996). Rather, “[t]hey must find an amount that . . . would fairly and
    reasonably compensate for the loss.”      
    Id. (citation and
    internal quotation marks
    omitted). However, “the impossibility of any exact evaluation of mental anguish
    requires that juries be given a measure of discretion in finding damages.” 
    Id. “The process
    of awarding damages for amorphous, discretionary injuries such as mental
    anguish or pain and suffering is inherently difficult because the alleged injury is a
    subjective, unliquidated, nonpecuniary loss.” Gen. Motors Corp. v. Burry, 
    203 S.W.3d 514
    , 551 (Tex. App.—Fort Worth 2006, pet. abated). “The amounts of damages
    awarded for pain and suffering . . . are necessarily speculative and each case must be
    judged on its own facts.” Figueroa v. Davis, 
    318 S.W.3d 53
    , 62 (Tex. App.—Houston
    [1st Dist.] 2010, no pet.) (citation and internal quotation marks omitted). “Once the
    existence of some . . . mental anguish . . . has been established, there is no objective
    way to measure the adequacy of the amount awarded as compensation.” 
    Id. (citation and
    internal quotation marks omitted).
    45
    B.     Legally and Factually Sufficient Evidence Supports the Jury’s
    Finding of Mental Anguish Damages.
    Fusite and Emerson at least somewhat acknowledge that Johnson suffered
    mental anguish in the past.17 They argue, however, that the evidence does not
    support the mental anguish damages amount awarded by the jury and that the amount
    should be no more than $1 million. They further argue that there is no evidence
    Johnson will suffer mental anguish in the future and certainly no evidence to support
    the amount of damages found by the jury. We first review the record for evidence
    relevant to the existence of mental anguish in the past and continuing in the future.
    1.     Johnson’s Evidence of His Mental State Before the
    Explosion.
    Several witnesses described what Johnson was like before the explosion. His
    sister testified that Johnson had been “loyal, as patient, soft-spoken, very—extremely
    giving, caring.” “[H]e was always, you know, the backbone or strength in [the]
    family.” He “loved to laugh. Always fun-loving, very upbeat.” His son, Quen Wade,
    described his father pre-explosion as “[p]retty happy, laid back, . . . not easily
    flustered.” He was “[j]ust in an overall good mood.” He was “a giving person, a
    good role model.” Even when Johnson and Wade’s mother ended their relationship
    and his mother initially objected to Wade living with Johnson, Johnson “remained
    17
    At one point in their brief, Fusite and Emerson assert that the evidence does
    not support the existence of past mental anguish. But in their argument addressing the
    award for past mental anguish damages, they concede that “[t]here is some evidence
    that Johnson suffered mental anguish in the past.”
    46
    patient and remained kind.” Johnson’s girlfriend testified that “[h]e always was very
    calm and kind of happy-go-lucky, very peaceful,” “just a real calm spirit.” He did not
    anger easily. A former client described Johnson as “[v]ery positive, very caring” and a
    “go-getter.” Johnson was very healthy, rarely getting sick. He was “always focus[]ed
    on his health,” eating healthy and exercising regularly.         He took pride in his
    appearance. He loved to travel.
    Johnson had always been a hard worker, even as a teenager delivering
    newspapers. His sister testified that “he’s just always been that way, just work, work,
    work.” In 1984, he started working at Sears as a service technician, thus starting his
    career in the HVAC business. He worked at Sears for eleven years, leaving when he
    decided to start his own business. In addition to his HVAC business, he owned a
    laundromat that he had purchased and remodeled himself in the evenings after he had
    finished with his HVAC business for the day.
    His sister explained that Johnson was someone who liked taking care of others,
    from his extended family to young men from his church who “were getting into
    trouble and having some issues,” whom he mentored and allowed to stay with him.
    His sister testified that “[h]e always helped all of our family: My kids, my sister, my
    sister’s kids, their families, cousins. And the list goes on.” His cousin’s daughter lived
    with him for a while and was “like his daughter.” “[H]e loved to be able to help.” He
    was “very active in the ministry” of his church, “truly dedicated,” “just truly
    passionate about it.”
    47
    Johnson was an elder at his church, and its pastor said that prior to the
    explosion, he would have described Johnson as “[o]utgoing, honest, great integrity,”
    “everything you would hope that your elder would be,” “[a] role model to young
    men.” Johnson attended church every Sunday.
    2.     Johnson’s Evidence of his Mental State Immediately After
    the Explosion.
    In the initial aftermath of the explosion, after thinking about the kind of life
    that lay ahead of him as a severe burn victim, Johnson chose death. For the first
    twenty-three hours after the explosion, Johnson refused medical treatment. The
    ambulance records reported that Johnson told the paramedics, “You guys don’t have
    to do all this” and “I don’t want to live this way.” Wade, Johnson’s son, testified that
    the chaplain at the hospital told Johnson’s family that Johnson had decided not to
    receive treatment because he wanted to die. Morris asked Johnson to consent to
    treatment, but Johnson replied that he “was done.” Johnson expressed the same
    sentiment to Wade, telling him that he did not want to live with someone taking care
    of him. Johnson’s girlfriend testified that he did not want to be an invalid. The
    pastor at Johnson’s church testified that when he met with Johnson at the hospital,
    Johnson “share[d] . . . how painful this is, how [un]comfortable, the agony, . . . the
    bleakness of the future, because he’s been . . . the worker. And he tells [the pastor
    that] he doesn’t want to live.” Johnson testified similarly at trial, stating, “I felt that I
    was going to have a very diminished life, and I didn’t want anybody taking—having to
    48
    take care of me. You know, they had their own lives.” He elaborated that he did not
    see a future for himself when he was “unable to do anything for [himself], having to
    depend on other people[:] I mean, I preferred to be in the role of helping people
    instead of depending on people.      So I just didn’t see [getting treatment] being
    something very—very beneficial for me.”
    Dr. Enrique Almaguer, a plastic and reconstructive surgeon, testified about
    burn injuries generally and Johnson’s injuries specifically. Not only was Dr. Almaguer
    not surprised by Johnson’s initially refusing treatment, but he agreed with it. He told
    the jury that having seen so many burn injuries and “the suffering and the loss of
    function that has occurred with these major burns,” “if I ever get burned . . . more
    than [thirty] percent of my total body surface area, I hope and pray that I have the
    courage to run back into the fire, because I don’t want to live this way myself.”
    Johnson was burned over sixty percent of his total body surface area.
    Dr. Almaguer further testified that severe burn patients like Johnson “suffer
    from a tremendous [loss] of self-esteem . . . and they feel incompetent, impotent.
    They feel useless, and they become depressed. Oftentimes they become reclusive.”
    Although this testimony was about severe burn patients in general, as we discuss next,
    the testimony at trial showed that Dr. Almaguer’s description reflects the effects
    Johnson’s injuries had on him.
    49
    3.     Johnson’s Evidence of his Mental State After Receiving
    Treatment.
    Johnson testified about the effect the accident and resulting injuries have had
    on him. Although he stated that the explosion is not easy for him to talk about, he
    agreed with his son that life after the explosion has been difficult for him emotionally.
    Because of his injuries, he can no longer work, but for most of his life, his work was
    his life. Despite being heavily involved in his church before, he has not returned to
    church since the accident because he is “not ready to face the people.”
    Dr. Almaguer explained that serious burns like Johnson’s can lead to scars that
    cause stiffness and lack of mobility in the affected body parts. At his first meeting
    with Johnson, Johnson told him that he was “very distraught” about his burn scars
    and injuries and wanted to have them corrected so that “he could do the bare
    minimum in life like feeding himself and walking.” At their second meeting, Johnson
    still had restriction of movement in his upper extremities, hands, and neck and
    jawline.
    Dr. Almaguer agreed that generally, a burn patient who has some improvement
    in range of motion and a decrease in pain will, over time, have at least some
    improvement in some of his psychological state. Dr. Almaguer sees some additional
    improvement in the future for Johnson. Nevertheless, Dr. Almaguer stated that
    Johnson’s life has changed completely because of his injuries. Johnson can no longer
    work, has no endurance, and cannot do simple activities of daily living. He had to
    50
    have his son sell his laundromat business for him because Johnson could no longer
    manage it himself, and his son “had a lot on him at that time, and . . . wasn’t going to
    be able to maintain it.” Johnson’s girlfriend testified that Johnson still could not make
    a fist and could not grip to open jars or even do “something as simple as picking up a
    coin off the floor.” Another doctor who testified stated that while Johnson can bathe
    and groom himself, he cannot button shirts or tie his shoes. Johnson’s girlfriend had
    to put foam tubing over forks and spoons so that he could grip them and learn to
    feed himself again. These physical effects are not themselves evidence of mental
    anguish, but witnesses testified about the impact they had on Johnson’s mental state.
    As numerous witnesses testified, the effects the injuries have had on Johnson’s
    life have in turn affected his mental state to such a degree that his personality has
    changed. A member of Johnson’s church, who lives in his neighborhood and who
    has known him for seventeen years, testified that “before [the explosion], you could
    always stop and hold a conversation and stuff like that with him and he’s—he’s not
    like that anymore.” Now, Johnson does not “want to . . . be around or talk to
    people.”
    Johnson’s sister testified that while Johnson was in the hospital, he was “very
    angry,” “very short,” and “very agitated.”      During the initial treatment, he had
    moments when he reverted back to not wanting treatment. At that point, he was
    “very depressed,” reserved, and “very introverted.” He still does not like to go out in
    public because he does not want people to see him. His depression is getting better,
    51
    “but he’s got a long way to go”; “he has an issue with the fact that he can’t help or do
    things solely for himself.”
    Johnson’s girlfriend testified that she could “tell a big difference” in Johnson’s
    mental state since the accident. When they were doing wound care, “[t]here was a lot
    of tension, and he . . . would snap at you.” As of the time of trial, she still considered
    him to be a friendly person, but more withdrawn.             She stated that he “really
    struggle[s]” with how his voice and appearance have changed since the explosion.
    Johnson’s pastor testified that the first time he saw Johnson again after initially
    seeing him in the hospital, he was “a different Clarence.” The pastor thought “there
    was even some, almost—did I make the right decision, because of the pain and the
    things that he was going through.”         The pastor found Johnson “a little . . .
    disconnected[,] . . . possibly because of his appearance.”
    Wade, Johnson’s son, testified that Johnson remained withdrawn and
    depressed after his release from the hospital. Wade lived with Johnson for about six
    months, and it “was very difficult at times” because “you could tell that he was
    frustrated that he was in this situation, and he wanted to do better and so he would
    lash out at the people closest to him.” “I think it just rocked his world.” There were
    times when Johnson would not come out of his room.                 Wade explained that
    Johnson’s “overall mood has just changed.” “[H]e’s not the happiest at all times. He
    has his days where he’s okay, and there are days where he is not.” Growing up, Wade
    did not see his father express emotions, but “[s]ince this has happened, [Johnson] is
    52
    more emotional. He cries more.” “Before [the accident] he, was not—not like that.”
    Wade stated, “I know this is exactly—this is directly related to this accident.”
    4.     The Evidence Sufficiently Shows that Johnson Suffered Past
    and Future Mental Anguish.
    In summary, no real argument can be made that the evidence failed to show
    that Johnson suffered mental anguish in the first twenty-four hours after the
    explosion. The evidence further supported a finding that Johnson continued to suffer
    mental anguish after those first twenty-four hours. During his several-months stay in
    the hospital, he was “really depressed” and several times changed his mind about
    continuing with his treatment.      He was “very angry” and “very agitated.”       The
    evidence further shows that Johnson continues to struggle with the physical changes
    caused by the explosion. A once sociable person heavily involved in his church, he is
    now a virtual recluse. He is more emotional, someone who cries in front of his son,
    something he never did before. He once ran two businesses and spent most of his
    time working and taking care of others, and now he cannot run either business or take
    care of others like he once did. While his depression has improved some, “he’s got a
    long way to go.” There was no evidence that his physical injuries will resolve in the
    future to the extent that he will be able to do the work he once did or that his
    appearance will improve, and thus no evidence that the source of mental anguish will
    abate. The jury’s finding of the existence of past mental anguish continuing into the
    53
    future is supported by the evidence and is not against the great weight and
    preponderance of the evidence.
    C.     Legally and Factually Sufficient Evidence Supports the Amount of
    the Jury’s Mental Anguish Awards.
    1.     The Jury’s Award for Past Mental Anguish Damages is
    Supported by the Evidence.
    Based on the evidence at trial, the jury’s award for past mental anguish damages
    was fair and reasonable and not against the great weight and preponderance of the
    evidence.
    a.     Other Factors Do Not Change Our Conclusion.
    We need not consider, as courts sometimes do, 18 the proportionality of the
    economic and noneconomic awards, given our conclusion that the evidence supports
    the award. See Marvelli v. Alston, 
    100 S.W.3d 460
    , 482 (Tex. App.—Fort Worth 2003,
    pet. denied) (stating that “as long as sufficient probative evidence exists to support the
    18
    Courts primarily look at damage ratios in evaluating the constitutionality of an
    award. Courts consider the ratio of compensatory damages to punitive damages in
    reviewing the constitutionality of a punitive damages award and often consider the
    ratio of economic damages to mental anguish damages in defamation cases in
    considering whether the evidence supports the award, in part to ensure that the award
    does not run afoul of the First Amendment. Tony Gullo Motors I, L.P. v. Chapa,
    
    212 S.W.3d 299
    , 308 (Tex. 2006) (looking at the ratio of compensatory damages to
    punitive damages and noting that awards exceeding a single-digit ratio raise due
    process concerns); Bentley v. Bunton, 
    94 S.W.3d 561
    , 605 (Tex. 2002) (considering the
    ratio of economic damages to noneconomic damages because “the First Amendment
    requires appellate review of amounts awarded for non-economic damages in
    defamation cases to ensure that any recovery only compensates the plaintiff for actual
    injuries and is not a disguised disapproval of the defendant”). There is no issue as to
    the constitutionality of the award in this case.
    54
    jury’s verdict, neither the reviewing court nor the trial court is entitled to substitute its
    judgment for that of the jury,” regardless of the ratio of economic to noneconomic
    damages);    cf.   Bishop   Abbey    Homes,    Ltd.   v.   Hale,   No.    05-14-01137-CV,
    
    2015 WL 9167799
    , at *18 (Tex. App.—Dallas Dec. 16, 2015) (mem. op.) (considering
    the ratio of the plaintiffs’ mental anguish damages to their pecuniary losses in
    assessing the amount of mental anguish damages to suggest as a remittitur),
    supplemented, No. 05-14-01137-CV, 
    2016 WL 80546
    (Tex. App.—Dallas Jan. 7, 2016,
    no pet.) (mem. op.); Moyer v. Moyer, No. 03-03-00751-CV, 
    2005 WL 2043823
    , at
    *14 (Tex. App.—Austin Aug. 26, 2005, no pet.) (mem. op.) (looking at the ratio of
    mental-anguish damages to other damages to determine if the jury’s award for
    emotional distress was excessive). But, even considering the ratio in this case, we find
    ample support for the jury’s award. The total award for mental anguish damages past
    and future was approximately 1.24 times the amount of economic damages, a
    reasonable ratio. Compare Houston Livestock Show & Rodeo, Inc. v. Hamrick, 
    125 S.W.3d 555
    , 581 (Tex. App.—Austin 2003, no pet.) (“The ratio of appellees’ mental-anguish
    damages to injury-to-reputation damages ranged from a low of 2.5 to 1 to a high of
    5 to 1, a ratio that we find reasonable in relation to their other damages.”), with 
    Bentley, 94 S.W.3d at 607
    (holding that the evidence did not support a $7 million award for
    mental anguish damages in a defamation case, an amount more than forty times the
    amount awarded for damage to the plaintiff’s reputation). Johnson’s total award for
    55
    all noneconomic damages was in reasonable proportion to the total award for
    economic damages—approximately three times the amount of economic damages.
    Further, courts sometimes reference awards in other cases to support their
    holding the evidence sufficient to support a mental anguish award. While courts
    generally “agree that, in appropriate circumstances, awards in similar cases can be
    relevant in analyzing whether an award of damages is excessive,” courts also agree that
    “[e]ach case must be measured by its own facts.” Critical Path Res., Inc. v. Cuevas,
    No. 14-16-00036-CV, 
    2018 WL 1532343
    , at *28 (Tex. App.—Houston [14th Dist.]
    Mar. 29, 2018), supplemented, No. 14-16-00036-CV, 
    2018 WL 2106599
    (Tex. App.—
    Houston [14th Dist.] May 8, 2018, no pet.). Because the appropriateness of an award
    in a case turns on the specific facts of that case, referencing the amounts awarded in
    other cases is of limited help to a court reviewing the sufficiency of the evidence to
    support an award. 19 Fusite and Emerson assert that “the case law is sparse on burn
    19
    This court has held both that “[e]ven though each case must be judged on its
    own unique facts, it is proper to consider other approved awards in similar cases to
    determine if an award for pain and suffering is excessive,” HCRA of Tex., Inc. v.
    Johnston, 
    178 S.W.3d 861
    , 872 (Tex. App.—Fort Worth 2005, no pet.), and that
    “[c]omparisons with other cases or verdicts is of little help because the same loss will
    result in different damages to different individuals.” George Grubbs Enters., Inc. v. Bien,
    
    881 S.W.2d 843
    , 858 (Tex. App.—Fort Worth 1994), rev’d on other grounds, 
    900 S.W.2d 337
    (Tex. 1995). Compare Moyer, 
    2005 WL 2043823
    , at *14 (stating that the jury’s total
    award for emotional distress was not out of proportion with similar Texas cases), with
    Harris v. Balderas, 
    949 S.W.2d 42
    , 44 (Tex. App.—San Antonio 1997, no writ) (“There
    is no certain standard by which personal injury damages can be measured, and each
    case must stand on its own facts and circumstances, and a comparison with other
    cases on amounts of verdicts are of little or no help.” (citations omitted)). See also
    Cuevas, 
    2018 WL 1532343
    , at *29 (“[M]odification of damages, which is a speculative
    56
    victims’ awards for past mental anguish,” “[b]ut non-burn plaintiffs who have
    suffered catastrophic, non-fatal injuries have been awarded $1 million or less for past
    mental anguish.” While Fusite and Emerson cite cases with mental anguish awards
    lower than the amount awarded here, other cases uphold awards similar to Johnson’s.
    See, e.g., 
    id. at *27,
    *29, *31 (sustaining awards of past mental anguish of $2 million and
    $5 million for two burn victims); 
    Burry, 203 S.W.3d at 551
    , 553 (affirming award for
    past and future pain and mental anguish of $5 million and $10 million, respectively).
    We cannot say that the award for past mental anguish damages is beyond what a
    reasonable jury could award based on the evidence such that we must deem the
    evidence insufficient to support it.
    b.     Any Damages Recovery for Johnson for Appearance-
    Related Anguish Does Not Duplicate His
    Disfigurement Award.
    Fusite and Emerson also argue that Johnson’s feelings about his appearance
    cannot be considered in evaluating whether the evidence supports the past mental
    anguish award because he was compensated for those feelings in the disfigurement
    awards, and any additional amount awarded under mental anguish would be an
    impermissible double recovery. The jury heard ample evidence of Johnson’s mental
    anguish related to his inability to live the life he once had, unrelated to Johnson’s
    endeavor, cannot be based upon case precedent alone, because comparison of injuries
    in different cases is virtually impossible.”) (citation omitted).
    57
    physical appearance. But we disagree that Johnson would get a double recovery if the
    jury considered his anguish related to his physical appearance.
    Fusite and Emerson are correct that courts have held that a jury may include
    compensation for a plaintiff’s embarrassment about a disfigurement in a
    disfigurement damages award. See Hopkins Cty. Hosp. Dist. v. Allen, 
    760 S.W.2d 341
    ,
    344 (Tex. App.—Texarkana 1988, no writ). However, “[t]here logically may be some
    overlap among the physical impairment, pain, suffering, mental anguish, and
    disfigurement categories of non-economic damages.” Day v. Domin, No. 05-14-00467-
    CV, 
    2015 WL 1743153
    , at *2 (Tex. App.—Dallas Apr. 16, 2015, no pet.) (mem. op.).
    The jury charge here had no definitions for “disfigurement,” “physical impairment,”
    or “mental anguish.” Thus, the jury could have allocated damages for the physical
    limitations from which Johnson now suffers under “physical impairment,” the
    damages related to his appearance under “disfigurement,” and damages to his
    emotional and mental state caused by his appearance and physical limitations under
    “mental anguish.” Further, the jury charge allowed such an allocation of damages.
    The charge instructed the jury that, in assessing damages, it should “[c]onsider the
    elements of damages listed below and none other” and “[c]onsider each element
    separately.” The charge further instructed, “Do not award any sum of money on any
    element if you have otherwise, under some other element, awarded a sum of money
    for the same loss. That is, do not compensate twice for the same loss, if any.” We
    must presume that the jury followed these instructions. See Golden Eagle, 
    116 S.W.3d 58
    at 773. Because the jury, in applying the charge, could have considered mental
    anguish related to Johnson’s appearance in awarding past mental anguish damages, we
    must consider evidence on that point in our review.
    Applying the factual sufficiency standard of review, considering the evidence of
    the effects that the explosion and resulting injuries had on Johnson and his life, we
    cannot say that the evidence supporting the jury’s award of past mental anguish
    damages is so weak or so contrary to the overwhelming weight of all the evidence as
    to make the award excessive.20 We overrule this part of Fusite and Emerson’s sixth
    issue.
    2.     The Jury’s Award for Future Mental Anguish Damages is
    Supported by the Evidence.
    As for future mental anguish damages, Johnson asked the jury to award him
    $5.2 million in future mental anguish damages—“one penny for every second that
    he’s alive,” based on the assumption that he will live another twenty-five years. The
    jury awarded him $3 million. Fusite and Emerson argue that the evidence does not
    support the jury’s award.
    In support of this argument, Fusite and Emerson mainly rely on a small
    number of pages in Johnson’s lengthy medical records, asserting that those pages
    To the extent Fusite and Emerson briefly argue that Johnson’s “medical
    20
    records show[ing] that he denied experiencing any depression, severe anxiety, or acute
    distress” make the past mental anguish award excessive, we reject their argument for
    the same reasons we reject their identical challenge to the award of damages for future
    mental anguish. See discussion infra Section II.C.2.
    59
    show that Johnson had denied experiencing depression, severe anxiety, or acute
    distress, and therefore the award for future mental anguish is excessive.21 However,
    the records do not make the jury’s damages finding excessive or against the great
    weight and preponderance of the evidence.
    First, all the records are evaluations or observations of Johnson, but none
    appear to be from a psychologist, psychiatrist, or any health care provider examining
    Johnson specifically for the purpose of evaluating his mental state. Over half of the
    references are from the records of a surgeon who made brief notes of his review of
    Johnson’s body systems at Johnson’s appointments. Other records referenced by
    Fusite and Emerson include chart notes from Johnson’s hospital stay, an office visit
    with a dermatologist, a pre-operation clearance visit with another surgeon, and a pre-
    operation clearance from a cardiologist; in other words, records from appointments
    where the primary purpose was not to evaluate Johnson’s mental state. For some,
    there is no indication that the doctor’s remarks—such as “awake, alert, in no acute
    distress.   Oriented to person, place, time, and situation”—are any indication of
    whether Johnson felt depression or other symptoms relevant to mental anguish.
    While Fusite and Emerson provided us with exhibit numbers for the medical
    21
    records they reference, they did not provide this court with references to specific
    pages in the voluminous appellate record. Nor did they identify which reporter’s
    record volume the specific records appear in. There are fifty-two volumes in the
    reporter’s record, thirty-five of which contain trial exhibits. The exhibits referenced
    by Fusite and Emerson are collectively nearly 2,700 pages long, and Fusite and
    Emerson relied on just 18 of those 2,700 pages. After an exhaustive effort, we have
    managed to locate all but one of the referenced pages.
    60
    Second, with one exception, all of the relied-on medical record notes are
    conclusory. They give no indication of what Johnson was asked to prompt the
    doctor’s note—or indeed, for many of the records, that Johnson was asked anything
    at all.    When the records do indicate that Johnson had been asked a question
    directly—because the record indicates that Johnson “denied depression”—the records
    indicate only that Johnson had been asked something, but what and in what context is
    unknown.       The only record that indicates what was asked of Johnson was a
    questionnaire, in the form of a checklist, about his current health given to him to fill
    out at an appointment. Johnson checked “no” for “[u]nusual or severe stress,”
    “[s]evere anxiety,” “[s]ignificant depression,” or “[s]ignificant changes in mood” in the
    last twelve months. This questionnaire does not indicate that Johnson felt no stress,
    anxiety, depression, or changes in mood, and the forms do not define what level of
    stress, anxiety, depression, or changes in mood are considered “severe” or
    “significant.” For that matter, the questionnaire does not even indicate that it was
    Johnson, with his difficulty gripping objects, who filled it out, or, if someone filled it
    out for him, whether the person consulted Johnson about the answers. At trial, Fusite
    and Emerson declined to ask Johnson any questions on the topic of mental anguish,
    whether about the questionnaire or otherwise. The checkmarks on the questionnaire
    do not override all the evidence presented at trial about Johnson’s mental anguish.
    In sum, the amount awarded was not without support in the evidence. The
    evidence of mental anguish amounted to more than “mere emotions.” See Latham v.
    61
    Castillo, 
    972 S.W.2d 66
    , 70 (Tex. 1998) (distinguishing cases disallowing mental
    anguish awards where the evidence “amounted to ‘mere emotions’”). The amount
    awarded was large, but so was the effect of the explosion on Johnson’s life and the
    resulting effect on his mental state, as established by the evidence. The award is not
    out of line with other awards in cases involving the effects of dramatic life events. See,
    e.g., Diamond Offshore Servs. Ltd. v. Williams, 
    510 S.W.3d 57
    , 79 (Tex. App.—Houston
    [1st Dist.] 2015) (upholding award of $3.4 million for future pain and mental anguish
    resulting from a back injury that made it difficult for plaintiff to participate in life
    activities he previously could), rev’d on other grounds, 
    542 S.W.3d 539
    (Tex. 2018);
    Wackenhut Corr. Corp. v. de la Rosa, 
    305 S.W.3d 594
    , 636–37 (Tex. App.—Corpus
    Christi 2009, no pet.) (upholding award of $2 million for future mental anguish for
    each of decedent’s children), abrogated on other grounds, Zorrilla v. Aypco Constr. II, LLC,
    
    469 S.W.3d 143
    (Tex. 2015). We overrule the remainder of Fusite and Emerson’s
    sixth issue.
    III.   The Insurance Company’s Award was Appropriate.
    Finally, Fusite and Emerson argue that we should reverse the judgment for the
    Insurance Company if we reverse Johnson’s award because the insurance company’s
    tort claims “largely tracked those of Johnson.” Because we affirm Johnson’s award,
    we likewise affirm the Insurance Company’s award.
    62
    CONCLUSION
    Having overruled Fusite and Emerson’s six issues, we affirm the trial court’s
    judgment.
    /s/ Mark T. Pittman
    Mark T. Pittman
    Justice
    Delivered: October 18, 2018
    63