Michael Nall v. BNSF Railway Company , 912 F.3d 263 ( 2018 )


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  •      Case: 17-20113   Document: 00514775490     Page: 1   Date Filed: 12/27/2018
    IN THE UNITED STATES COURT OF APPEALS
    FOR THE FIFTH CIRCUIT
    United States Court of Appeals
    Fifth Circuit
    No. 17-20113                          FILED
    December 27, 2018
    Lyle W. Cayce
    FLORA NALL, as Personal Representative of                              Clerk
    the Estate of Michael Nall, substituted in place
    and stead of Michael Nall, deceased,
    Plaintiff – Appellant,
    v.
    BNSF RAILWAY COMPANY,
    Defendant – Appellee.
    Appeal from the United States District Court
    for the Southern District of Texas
    Before ELROD, COSTA, and HO, Circuit Judges.
    JENNIFER WALKER ELROD, Circuit Judge:
    Michael Nall sued his employer, BNSF Railway Company, for disability
    discrimination and retaliation after he was diagnosed with Parkinson’s disease
    and later placed on medical leave by BNSF. Because there is a fact issue as to
    whether BNSF discriminated against Nall, we REVERSE the grant of
    summary judgment to BNSF on Nall’s disability discrimination claim and
    REMAND for further proceedings. Because Nall fails to identify a material
    fact issue regarding his retaliation claim, we AFFIRM the district court’s
    judgment on this claim.
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    No. 17-20113
    I.
    Nall started working as a trainman with BNSF in 1973. In 2010, he was
    diagnosed with Parkinson’s disease. At this time, BNSF provided Nall and his
    doctor with a medical status form listing the job duties of a trainman, including
    items such as operating track switches, applying and releasing hand brakes,
    monitoring track conditions, inspecting train cars and equipment, relaying
    various types of signals, and controlling train speed. After Nall’s neurologist
    cleared him to continue working, BNSF’s doctor revised the form to instead
    contain a list of switchman duties different from the trainman duties on the
    previous form. The new list added items such as “mak[ing] quick hand and leg
    movements,” “rid[ing] on moving cars while holding onto a ladder,” and
    “maintaining good balance and steadiness of stance/gait.”
    Nall continued to work with BNSF for the next year and a half without
    incident. Then, in 2012, BNSF gave Nall a letter stating that a co-worker had
    voiced concern about Nall’s ability to safely perform his job duties. Nall was
    placed on medical leave and required to obtain a release from the BNSF
    medical department to return to work.
    To begin the evaluation process, BNSF requested a copy of the results of
    a physical examination from Nall’s neurologist that would show the doctor’s
    awareness of BNSF’s concerns and the results of any diagnostic tests
    performed.    Nall complied.     He submitted to BNSF a report from his
    neurologist recommending further evaluations by a neuropsychologist and a
    physical therapist. BNSF requested that Nall complete these evaluations.
    Nall again complied. The neuropsychologist reported that he did not see any
    evidence of brain damage after evaluating Nall and placed Nall’s skill level at
    the low end of the average range. The occupational therapist concluded that
    Nall was able to meet the demands of his position at BNSF; suggested that
    2
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    Nall be cautious with balance situations; and added that Nall was able to
    perform balance tasks safely.
    BNSF found some of the statements in these reports “concerning” and
    kept Nall on leave. BNSF emphasized that its rail yard employees “need[ ] to
    be able to make quick decisions and take quick actions in order to work safely”
    and     that    “[b]alance   is   essential    to   working     safely    as    a
    brakeman/switchman/conductor.” In addition, BNSF provided Nall with five
    pages of photographs depicting some of his job duties and asked for his
    neurologist to review them and return a statement to BNSF regarding Nall’s
    ability to complete the depicted tasks.
    Dr. Joseph Jankovic, a neurologist and the director of the Parkinson’s
    Disease Center and Movement Disorders Clinic at the Baylor College of
    Medicine, reviewed the photographs. He concluded that Nall was able to
    perform the job duties shown in the photographs safely and was “in very good
    condition with balance and concentration in order.” BNSF next requested that
    Nall perform a field test. During the test, Nall successfully completed all of
    the requested tasks, including taking instructions via radio, climbing on and
    off equipment, and walking on uneven surfaces. The physical therapist who
    conducted the test wrote a report in which he noted that Nall had decreased
    balance when reaching, a resting tremor, and slow and jerky movement
    patterns. Although not mentioned in the report, two BNSF employees later
    testified in depositions that, during the test, Nall engaged in conduct that
    violated two of BNSF’s “eight deadly decisions”—BNSF’s most serious safety
    rules. BNSF informed Nall that, based on the results of the field test, he could
    not return to work.
    A few months later, Nall filed a discrimination charge with the Equal
    Employment Opportunity Commission (EEOC). He also sent a new medical
    status form to BNSF showing that he could safely return to work. BNSF
    3
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    responded that Nall was unable to return to work because of his field test
    results. Nall sent another medical status form to BNSF, from another doctor,
    clearing him to return to work, and a new BNSF doctor, Dr. Laura Gillis,
    responded by classifying him as “permanently medically disqualified.” The
    EEOC concluded its investigation and sent a letter to BNSF stating that it did
    not agree with BNSF that Nall was a potential harm to himself or others or
    that he was incapable of doing his job.             Indeed, the EEOC investigator
    concluded that there was a violation of the Americans with Disabilities Act
    (ADA).
    Nall and his wife filed the instant lawsuit. During the litigation process,
    Nall kept trying to return to work. BNSF conducted a second field test and
    found that Nall was still unable to perform his job duties safely. Several
    months     later,   Nall    submitted     records    to   BNSF     showing     that    his
    neuropsychological testing results were “essentially the same as they were in
    2012.” BNSF’s decision remained the same.
    Against BNSF, Nall alleged disability discrimination and retaliation
    under the ADA and Texas Commission on Human Rights Act (TCHRA). 1
    BNSF maintains that it did not discriminate against Nall because Nall was
    unsafe to return to work throughout the relevant time period. The district
    court held that Nall presented no direct evidence of discrimination, was not
    qualified for his position as a trainman, failed to present evidence of pretext,
    and was precluded from succeeding on his claims because BNSF is entitled to
    a “direct threat” defense. Nall timely appealed.
    1 Nall also alleged age discrimination and brought a retaliation claim under the Age
    Discrimination in Employment Act (ADEA). However, on appeal, Nall states that he “no
    longer wishes to pursue his age discrimination claims.” Thus, he has waived any arguments
    under the ADEA. See United States v. Conn, 
    657 F.3d 280
    , 286 (5th Cir. 2011) (“‘[W]aiver is
    the intentional relinquishment of a known right,’ and ‘waived errors are entirely
    unreviewable.’” (quoting United States v. Arviso-Mata, 
    442 F.3d 382
    , 384 (5th Cir. 2006))).
    4
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    II.
    We review de novo a district court’s grant of summary judgment, viewing
    all facts and evidence in the light most favorable to the nonmoving party.
    Cannon v. Jacobs Field Servs. N. Am., Inc., 
    813 F.3d 586
    , 590 (5th Cir. 2016).
    “Summary judgment is only appropriate if the movant has shown that there is
    no genuine issue as to any material fact such that the movant is entitled to
    judgment as a matter of law.” 
    Id.
    “An issue of material fact is genuine if a reasonable jury could return a
    verdict for the nonmovant.          In reviewing the evidence, we must draw all
    reasonable inferences in favor of the nonmoving party, and avoid credibility
    determinations and weighing of the evidence. In so doing, we must disregard
    all evidence favorable to the moving party that the jury is not required to
    believe.” Sandstad v. CB Ricard Ellis, Inc., 
    309 F.3d 893
    , 896 (5th Cir. 2002)
    (citations omitted).
    III.
    “In employment discrimination cases, a plaintiff may present his case by
    direct or circumstantial evidence, or both.” 2 
    Id.
     If the plaintiff produces direct
    evidence that discriminatory animus played a role in the employer’s adverse
    employment decision, the burden of persuasion shifts to the defendant who
    must prove that it would have taken the same action despite any
    discriminatory animus.        
    Id.
        If the plaintiff only produces circumstantial
    evidence of discrimination, the well-known burden-shifting analysis set forth
    2 “Because TCHRA ‘parallels the language of the ADA,’ Texas courts follow ADA law
    in evaluating TCHRA discrimination claims.” Williams v. Tarrant Cty. Coll. Dist., 717 F.
    App’x 440, 444–45 (5th Cir. 2018) (quoting Pegram v. Honeywell, Inc., 
    361 F.3d 272
    , 285–87
    (5th Cir. 2004)). Except where we have noted otherwise, the following ADA analysis therefore
    applies equally to Nall’s claims under the TCHRA. See 
    id.
    5
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    in McDonnell Douglas Corp. v. Green, 
    411 U.S. 792
    , 802 (1973), guides our
    inquiry. 
    Id.
     The district court held that Nall neither presented direct evidence
    of discrimination nor satisfied the circumstantial-evidence requirements of
    McDonnell Douglas. We address both determinations.
    A.
    On appeal, Nall presents several comments by BNSF employees as direct
    evidence of discrimination. First, right after the initial field test, Dana Dickey,
    the BNSF field medical manager, allegedly told Nall that Nall was “never
    coming back to work” and that “they were just sending [him] paper
    work . . . to—you know, be nice.” Second, Dr. Gillis and BNSF’s manager of
    clinical services, Carol Wilks, allegedly told Nall’s wife that “people with
    Parkinson’s don’t get better.” Third, Dickey e-mailed Dr. Gillis regarding
    Nall’s condition and whether BNSF should offer him a second field test and
    said that they “have to have it all documented.” In response, Dr. Gillis noted
    that there was a low likelihood that Nall’s situation would improve but that
    they have to ask the questions. Fourth, despite Nall’s submission of several
    medical status forms indicating his ability to work safely, Dr. Gillis and Dickey
    repeatedly referenced only the first field test.
    The first two statements above—that BNSF was just sending Nall
    paperwork to “be nice” and that “people with Parkinson’s don’t get better”—
    were the only comments presented as direct evidence of discrimination to the
    district court. As a result, these are the only statements we consider. See
    United States v. Mix, 
    791 F.3d 603
    , 611–12 (5th Cir. 2015) (holding that
    arguments not raised below are forfeited). We agree with the district court
    that these two statements are insufficient to constitute direct evidence.
    If an inference is required for evidence to be probative as to an employer’s
    discriminatory animus, the evidence is circumstantial, not direct. Sandstad,
    
    309 F.3d at
    897–98.      Here, the evidence that Nall provides requires an
    6
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    inference to be probative as to any discriminatory animus. First, to find that
    Dickey’s comments, said after the field test, are evidence of animus requires
    the inference that Nall was “never coming back to work” because of Nall’s
    disorder rather than his performance on the field test. Second, Dr. Gillis’s and
    Wilks’s statements about people with Parkinson’s disease could simply be an
    observation about the disorder.           To be evidence of animus, the comment
    requires an inference that the irreversible nature of Parkinson’s disease was
    the reason why Nall would not be returning to work. These comments do not
    constitute direct evidence; they are circumstantial evidence which we may only
    consider under McDonnell Douglas. Having so concluded, we move on to the
    McDonnell Douglas framework. 3
    B.
    Under the McDonnell Douglas framework, Nall must first make out a
    prima facie case of discrimination by showing that: (1) he has a disability or
    was regarded as disabled; (2) he was qualified for the job; and (3) he was subject
    to an adverse employment decision because of his disability. Williams v. J.B.
    Hunt Transp., Inc., 
    826 F.3d 806
    , 811 (5th Cir. 2016). If he does, the burden
    shifts to BNSF to articulate a legitimate, nondiscriminatory reason for the
    adverse employment action. 
    Id.
     If BNSF satisfies its burden, the burden shifts
    back to Nall “to produce evidence from which a jury could conclude that
    [BNSF’s] articulated reason is pretextual.” Cannon, 813 F.3d at 590.
    3 Judge Costa’s observation in his concurrence that the McDonnell Douglas framework
    can be inefficient and cumbersome is astute. However, as Judge Costa notes, Nall’s attempt
    to prove his case by direct evidence relied only on comments by his supervisors. Beyond these
    comments, which we have concluded are not direct evidence, Nall attempted to prove his case
    using circumstantial evidence. Thus, because Nall presented only circumstantial evidence
    on summary judgment, it does not appear that we have the liberty to analyze this case in the
    streamlined manner that Judge Costa describes.
    7
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    Here, the district court concluded that Nall satisfied the first and third
    elements of a prima facie case of discrimination but failed to show the second
    element—that Nall was qualified for the job of a trainman. That element is
    the focus of this appeal.
    “To be a qualified employee, [Nall] must be able to show that he could
    either (1) ‘perform the essential functions of the job in spite of his disability,’
    or (2) that ‘a reasonable accommodation of his disability would have enabled
    him to perform the essential functions of his job.’” Id. at 592 (quoting EEOC
    v. LHC Grp., Inc., 
    773 F.3d 688
    , 697 (5th Cir. 2014)); see 
    42 U.S.C. § 12111
    (8).
    Nall argues that he could perform the essential functions of his job. “A function
    is ‘essential’ if it bears ‘more than a marginal relationship’ to the employee’s
    job.” Cannon, 813 F.3d at 592 (quoting Chandler v. City of Dall., 
    2 F.3d 1385
    ,
    1393 (5th Cir. 1993), holding modified on other grounds as discussed in Kapche
    v. City of San Antonio, 
    304 F.3d 493
     (5th Cir. 2002)). “[C]onsideration shall be
    given to the employer’s judgment as to what functions of a job are essential,
    and if an employer has prepared a written description before advertising or
    interviewing applicants for the job, this description shall be considered
    evidence of the essential functions of the job.” 
    42 U.S.C. § 12111
    (8).
    In this case, the parties agree that the question of whether Nall was a
    qualified employee is directly related to the question of whether BNSF is
    entitled to a “direct threat” defense. 4 An employer is entitled to a direct threat
    defense if an employee poses a “significant risk to the health or safety of others
    that cannot be eliminated by reasonable accommodation.” EEOC v. E.I. Du
    Pont de Nemours & Co., 
    480 F.3d 724
    , 731 (5th Cir. 2007) (quoting 42 U.S.C.
    4 While the “direct threat” defense controls our analysis of Nall’s ADA claims, the
    TCHRA does not contain analogous statutory language, we have not found any Texas case
    law discussing the issue, and the parties did not brief it. Accordingly, the district court will
    need to address this issue on remand.
    8
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    § 12111(3)); see also 
    42 U.S.C. § 12113
    (b). Whether an employer has properly
    determined that a person poses a direct threat depends on “the objective
    reasonableness of [the employer’s] actions.” Bragdon v. Abbott, 
    524 U.S. 624
    ,
    650 (1998) (“[C]ourts should assess the objective reasonableness of the views
    of   health    care    professionals     without     deferring     to   their   individual
    judgments[.]”). 5 Thus, the question here is whether the processes used in
    determining that Nall could not perform the essential duties of a trainman
    safely were objectively reasonable; or, applying the summary-judgment
    standard, whether a reasonable jury could conclude that BNSF’s actions were
    not objectively reasonable. 6
    Nall states in his complaint that he worked as a trainman, performing
    the duties of a conductor, switchman, and brakeman. According to BNSF, the
    duties of a conductor include maneuvering on, off, and around railcars, riding
    on railcars with four points of contact, hand signaling, connecting and
    disconnecting hoses and railcars, and “throwing” switches.                 Moreover, the
    duties of a switchman include substantially similar tasks, along with the
    ability “to make quick hand and leg movements” and “maintain[ ] good balance
    and steadiness of stance/gait.”
    According to Nall, several of the duties listed by BNSF, specifically those
    involving quick movements and balance, were not part of his job. In support,
    5  We note that the dissenting opinion acknowledges that we have stated the law
    correctly. Our disagreement with that opinion stems from the proper application of the law
    in this case—specifically, how to evaluate the objective reasonableness of BNSF’s actions.
    6 We do not reach the question of which party bears the burden of proof regarding the
    direct threat defense. BNSF argues that because the direct threat defense is related to the
    second element of Nall’s prima facie case, Nall should have the burden to prove that he could
    safely do his job. In Rizzo v. Children’s World Learning Ctrs., Inc., 
    213 F.3d 209
     (5th Cir.
    2000) (en banc), we declined to reach the question of which party bears the burden of
    establishing that an individual’s disability poses a direct health or safety threat to the
    disabled employee or others. 
    213 F.3d at
    213 & n.4. We do so again here. Even assuming
    arguendo that the burden is Nall’s, at this stage, he has satisfied it.
    9
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    Nall points to a BNSF medical status form provided to Nall and his doctor
    before the list of switchman duties that includes a more limited set of trainman
    duties. The medical status form lists the following: operating track switches
    and derails, using hand brakes, monitoring track conditions and traffic,
    inspecting railcars and equipment, communicating signals affecting the
    movement of trains, and controlling the speed and clearance distance of
    railcars. After Nall’s neurologist recommended a release to full duty for Nall
    based on this medical status form back in 2010, shortly after Nall had been
    diagnosed, a BNSF doctor provided Nall’s doctor with a new list that she said,
    “addresses the duties for which Parkinson’s symptoms may be of issue.” In
    addition, Nall cites to the testimony of BNSF’s terminal manager for the yard
    where Nall worked. The manager testified that it is not essential to work
    quickly as a conductor, switchman, or brakeman.
    A reasonable jury could conclude that BNSF did not act reasonably in its
    process to determine that Nall could not perform the essential duties of a
    trainman safely. First is the issue of identifying those essential duties. The
    district court acknowledged that the job descriptions provided to the court,
    specifically the original medical status form and the more specific list of
    switchman duties, contain differences. But the court concluded that these
    differences do not affect the question of whether Nall was qualified because
    “the record demonstrated that BNSF repeatedly stated that it deemed
    performing job tasks safely as essential to Nall’s position” and this was also
    reflected in the original medical status form job description. The question
    remains, however, what the job tasks were that Nall could allegedly not
    perform safely.
    For our analysis, we take guidance from the ADA’s definition of a
    “qualified individual” and consider the list of trainman duties BNSF originally
    provided to Nall on the medical status form that they gave to his doctor. See
    10
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    42 U.S.C. § 12111
    (8) (stating that a written job description shall be considered
    if it was prepared “before advertising or interviewing applicants for the job”).
    This list did not include any reference to quick movements, balance, or
    steadiness. Moreover, BNSF’s terminal manager testified that it was not
    essential to work quickly as a conductor, switchman, or brakeman. Cf. Holly
    v. Clairson Indus., L.L.C., 
    492 F.3d 1247
    , 1257 (11th Cir. 2007) (“[W]hen
    considering the employer’s judgment regarding what is an essential function,
    we have previously considered not only the company’s ‘official position,’ but
    also testimony from the plaintiff’s supervisor.”). Taking the evidence in the
    light most favorable to Nall, the trainman duties listed on the medical status
    form are the ones we consider. Next, we address the question of whether
    BNSF’s determination that Nall could not safely perform these tasks was
    objectively reasonable.
    We emphasize that our inquiry on the issue of objective reasonableness
    does not ask whether BNSF’s conclusion that Nall could not perform his job
    duties safely was a reasonable medical judgment. Instead, we ask whether
    BNSF actually exercised that judgment. In other words, the question on
    appeal is not whether it was reasonable for BNSF to conclude that Parkinson’s
    disease symptoms prevented Nall from safely performing his duties; the
    question is whether BNSF came to that conclusion via a reasonable process
    that was not, as Nall alleges, manipulated midstream to achieve BNSF’s
    desired result of disqualifying him. More precisely, the question is whether
    there is any evidence in the record which, if believed, would be sufficient to
    support a jury finding that BNSF’s procedures for evaluating Nall’s disability
    were unreasonable.
    In finding that BNSF’s conclusion on Nall’s fitness for work was
    reasonable, the dissenting opinion assumes an answer to a disputed fact
    issue—that BNSF’s procedures were reasonable—and that is the one thing we
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    are not permitted to do on summary judgment. Under the vision established
    by Congress, fact issues are tried by juries. See Fed. R. Civ. P. 38(a) (“The right
    of trial by jury as declared by the Seventh Amendment . . . is preserved to the
    parties inviolate.”); Anderson v. Liberty Lobby, Inc., 
    477 U.S. 242
    , 249 (1986)
    (“[A]t the summary judgment stage the judge’s function is not himself to weigh
    the evidence and determine the truth of the matter but to determine whether
    there is a genuine issue for trial.”). It is not our role as judges to decide fact
    issues in order to affirm on summary judgment. With that in mind, we review
    the record for evidence that could create a fact issue on the reasonableness of
    the process by which BNSF reached its decision to disqualify Nall.
    On this question, taking into consideration the reports by Nall’s
    doctors—all of whom concluded that Nall could safely perform the tasks of a
    trainman listed on the medical status form that BNSF originally provided to
    Nall—the fact that Nall successfully completed each of the tasks presented to
    him during his first field test, and the comments made by BNSF employees
    that Nall was “never coming back to work” and that “people with Parkinson’s
    don’t get better,” there is a genuine dispute. See E.I. Du Pont, 
    480 F.3d at 728, 731
     (holding that judgment as a matter of law on direct threat defense was
    inappropriate where employee presented evidence she could safely perform
    essential job function but employer relied on disputed field test); Riel v. Elec.
    Data Sys. Corp., 
    99 F.3d 678
    , 680–81, 683 (5th Cir. 1996) (reversing summary
    judgment where employer terminated employee for inability to perform
    essential function not included on lists of essential functions provided to
    employee and his doctor, and employee introduced evidence that the function
    was not essential).
    The district court held that BNSF was entitled to disregard Dr.
    Jankovic’s medical releases because they “were based on a limited set of
    observations and ‘incomplete set of facts.’” Hickman v. Exxon Mobile, 
    2012 WL 12
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    9100358, at *9 (S.D. Tex. Sept. 27, 2012). Even if it is true that BNSF could
    choose to credit the opinions of its own doctors over Nall’s, the evidence
    identified by Nall puts into question the objective reasonableness of the process
    by which BNSF’s doctors formed those opinions.
    The district court supported its decision with citations to our
    unpublished opinion in Hickman v. Exxon Mobil, 540 F. App’x 277 (5th Cir.
    2013). In that case, the plaintiff, Hickman, argued that her employer, Exxon,
    failed to conduct an adequate individualized assessment of her abilities to
    perform her job in support of a direct threat defense because it discounted the
    opinion of her doctor. See Hickman, 
    2012 WL 9100358
    , at *9. The district
    court disagreed. 
    Id.
     It characterized that doctor’s decision as a “last-minute
    work release” and noted that two of Hickman’s previous neurologists had
    placed work restrictions on her; that she had worked with two neurologists
    before she found one who would release her to return to work with only a
    driving restriction; and that the doctor who released her orally agreed with
    Exxon’s doctor that his concerns regarding Hickman returning to work were
    legitimate.    
    Id.
       In a short, unpublished opinion that did not discuss the
    differing views of these doctors, we affirmed. See Hickman, 540 F. App’x at
    277. This is a completely different case. And, in any event, we are not bound
    by Hickman.
    Here, Nall provided medical reports from numerous doctors concluding
    that he could perform his job duties safely. 7 This includes a report from a
    7 The dissenting opinion asserts that under the majority’s approach, an employee need
    only find one doctor who disagrees with the employer’s conclusion to survive summary
    judgment. But the dissent misunderstands our analysis: we reverse the summary judgment
    not because Nall’s doctors and BNSF’s doctors disagreed, but because of the presence of
    disagreeing doctors coupled with the dispute over the first field test, the discrepancies
    between the job descriptions, and the comments made by BNSF’s employees. The totality of
    the circumstances creates a fact issue as to whether BNSF manipulated the process to
    guarantee a particular result.
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    neurologist who said that Nall’s “station and gait were not too abnormal”; a
    report from an occupational therapist who found that Nall “appeared to be able
    to meet the demands for various positions working for BNSF” and that he could
    perform balance tasks safely; a memo from Baylor College of Medicine
    neurologist Dr. Jankovic that he had reviewed BNSF’s photographs of Nall’s
    job duties and concluded that he was able to perform his job duties safely; a
    medical status form completed by Dr. Jankovic stating that Nall was able to
    return to work without any restrictions; and a medical status form completed
    by a different doctor stating that Nall was able to return to work without any
    restrictions. 8
    In addition, and importantly, Nall successfully completed each of the
    tasks required of him during his first field test. BNSF nonetheless did not
    reinstate Nall because he committed “[s]everal safety exceptions” during the
    evaluation, including making the “deadly decision” of going between moving
    cars, failing to give proper hand signals, and demonstrating unsafe behavior
    In any event, a similar criticism applies to the approach advocated in the dissenting
    opinion. If the proper inquiry is into the reasonableness of the employer’s conclusion about
    the employee’s fitness to work, the employer will win at the summary judgment stage as long
    as one doctor agrees with the employer’s decision. Our approach, in contrast, does not distill
    summary judgment in these cases into a syllogism under which plugging in the proper
    premises produces a certain result regardless of the facts. Simply put, facts matter, and we
    reserve material fact issues for juries.
    8 With respect to timing, Nall argues on appeal that BNSF took adverse actions in:
    (1) April 2012, when BNSF placed him on medical leave; (2) September 2012, when BNSF
    informed Nall that he could not return to work; (3) December 2012 through January 2013,
    when BNSF again said Nall could not return to work; and (4) June through July 2013, when
    BNSF permanently medically disqualified him. At the district court, however, Nall only
    argued that he was subjected to an adverse employment decision on the last two of these four
    dates: December 2012 and June 2013, when Nall submitted information that he was able to
    return to work without restriction and BNSF still denied his requests. All of the doctor
    evaluations listed above were provided to BNSF before December 2012, with the exception of
    the second medical status form, which was sent to BNSF on December 20, 2012. Moreover,
    because he did not present argument regarding the first two actions to the district court, Nall
    has forfeited the argument that he was also subject to adverse actions in April and September
    2012. See Mix, 791 F.3d at 611.
    14
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    No. 17-20113
    while dismounting equipment. Later, BNSF also claimed that Nall made a
    second “deadly decision”—“fouling” the track, which involves walking on a
    part of the track that puts you at risk of being hit. Nall, however, disputes
    each of these allegations. With respect to the “deadly decisions,” Nall testified
    that the cars were not moving when he started walking between them, and
    that he was asked to do something during the test that required him to “foul”
    the track. He also testified that he used a radio during the evaluation, not
    hand signals, and did not agree that he dismounted the railcar in a way that
    was unsafe.
    Finally, Nall provided evidence that BNSF employees made comments
    that cast doubt on the propriety of BNSF’s evaluation process. Nall testified
    in his deposition that BNSF’s field medical manager told him he was “never
    coming back to work” and that the company was only asking Nall for updated
    medical paperwork to “be nice.” In addition, two BNSF employees—a doctor
    and the manager of clinical services—allegedly told Nall’s wife that “people
    with Parkinson’s don’t get better.”
    Viewing the evidence in the light most favorable to Nall, as we must,
    there is a genuine dispute as to the objective reasonableness of BNSF’s
    actions. 9 See, e.g., Justice v. Crown Cork & Seal Co., 
    527 F.3d 1080
    , 1091–92
    (10th Cir. 2008) (holding that a triable issue of material fact existed as to
    whether the employee actually posed a direct threat to workplace safety where
    there was a question on whether a physical therapist’s opinion could be
    considered objective, evidence indicating that the employee’s restrictions may
    not have limited his ability to perform safely in his environment, and evidence
    9 The dissenting opinion is quite correct that our task is not to determine whether
    BNSF was correct in its ultimate conclusion that Nall was unable to perform his duties safely.
    A correct conclusion is not required to satisfy the objective reasonableness standard. What
    is required, however, is that BNSF comply with its own procedures and not change the
    disqualification criteria in the middle of the evaluation to dictate a particular outcome.
    15
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    No. 17-20113
    that his employer’s application of various medical judgments to the workplace
    was unreasonable); Echazabal v. Chevron USA, Inc., 
    336 F.3d 1023
    , 1030 (9th
    Cir. 2003) (holding that medical opinion letters from the employee’s doctors,
    together with the employee’s own declaration, raised a material fact issue as
    to the objective reasonableness of the employer’s opinion); Lowe v. Ala. Power
    Co., 
    244 F.3d 1305
    , 1309 (11th Cir. 2001) (holding that questions of fact
    remained as to what the essential functions of the employee’s position are, and
    whether, assuming the disputed function was included, the employee was
    qualified to perform such work).
    The numerous medical reports that cleared Nall to work, the comments
    made by BNSF employees, and the fact dispute on the “safety exceptions”
    during Nall’s first field test—which BNSF cited as the basis for refusing to
    reinstate him—are sufficient to create a material fact issue on the question of
    whether BNSF’s evaluation procedures were manipulated midstream in order
    to produce a certain outcome. As a result, for summary-judgment purposes,
    Nall has established his prima facie case, and we move to the next steps of the
    McDonnell Douglas analysis—asking whether BNSF has articulated a
    legitimate, nondiscriminatory reason for placing Nall on medical leave and, if
    so, whether Nall has shown that the articulated reason is pretextual. 10
    10  The district court also concluded that BNSF was entitled to a “business necessity”
    defense. The “direct threat” defense and the “business necessity” defense “require different
    types of proof.” EEOC v. Exxon Corp., 
    203 F.3d 871
    , 875 (5th Cir. 2000). “Direct threat
    focuses on the individual employee, examining the specific risk posed by the employee’s
    disability. In contrast, business necessity addresses whether the qualification standard can
    be justified as an across-the-board requirement.” 
    Id.
     (citation omitted). The district court
    seemed to consider the qualification standard here to be a requirement that Nall could do his
    job safely. Thus, its analysis regarding the defense mirrored its direct threat analysis.
    Similarly, BNSF summarily states that the district court’s separate rejection of Nall’s attack
    on BNSF’s business necessity defense was correct “[f]or the same reasons” given in support
    of its direct threat defense. Accepting the relevant qualification as the ability to do his job
    safely, we conclude that Nall has also established a fact issue regarding BNSF’s entitlement
    to the business necessity defense under the ADA.
    16
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    No. 17-20113
    “At summary judgment, evidence demonstrating that the employer’s
    explanation is false or unworthy of credence, taken together with the plaintiff’s
    prima facie case, is likely to support an inference of discrimination even
    without further evidence of defendant’s true motive.” Diggs v. Burlington N.
    & Santa Fe Ry. Co., 742 F. App’x 1, 4 (5th Cir. 2018) (quoting LHC Grp., 773
    F.3d at 702). The district court held that the safety concerns emphasized by
    BNSF constituted a legitimate, non-discriminatory reason for BNSF to place
    Nall on medical leave. As we have discussed, however, viewing the evidence
    in the light most favorable to Nall, BNSF’s safety concerns were not tied to
    Nall’s ability to perform the tasks required of his job. He could perform those
    tasks. Instead, BNSF’s concerns were tied to his physical impairment—his
    Parkinson’s symptoms.
    Notably, the job requirements that were added by BNSF to those of a
    trainman reflect abilities directly impacted by Parkinson’s disease, such as the
    ability “to make quick hand and leg movements” and “maintain[ ] good balance
    and steadiness of stance/gait.” This casts doubt on the legitimacy of BNSF’s
    concerns. See Caldwell v. KHOU-TV, 
    850 F.3d 237
    , 242 (5th Cir. 2017) (“An
    employer’s inconsistent explanations for an employment decision ‘cast doubt’
    on the truthfulness of those explanations.”); see also Rizzo v. Children’s World
    Learning Ctrs., Inc., 
    213 F.3d 209
    , 221 (5th Cir. 2000) (en banc) (Jones, J. and
    Smith, J., dissenting) (“[W]e may have special cause for suspicion when an
    employer justifies discrimination not on the relatively concrete and more
    readily measurable basis of ability to perform a particular essential job
    function safely, but because of a proffered generalized concern about health
    and safety.”).
    As with the direct threat defense, however, the district court did not address the
    applicability of the business necessity defense under the TCHRA, and the parties did not
    brief it. The district court will need to consider this on remand.
    17
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    No. 17-20113
    Additional evidence that suggests that BNSF’s explanation is false or
    unworthy of credence includes the reports by Nall’s doctors, who concluded
    that Nall could safely return to work, the “never coming back to work” and
    Parkinson’s-related statements made by BNSF employees, and the fact that
    BNSF continued to move the goalposts—to make requests of Nall, even as he
    completed the previous ones. Cf. Diggs, 742 F. App’x at 5 (holding that there
    was no fact issue regarding pretext when an employee failed to timely submit
    information requested by his employer, BNSF, and there was “no evidence that
    the company would create new information demands after [the employee]
    complied with previous ones”).
    As a result, even assuming that BNSF’s alleged safety concerns were
    legitimate and non-discriminatory, the totality of the circumstances creates a
    material fact issue as to whether BNSF’s proffered reasons for refusing to
    reinstate Nall were merely pretextual—that is, that the real reason for BNSF’s
    adverse employment action was Nall’s disability.           Accordingly, on Nall’s
    disability discrimination claims, we reverse the district court’s judgment. Of
    course, this holding does not mean that Nall will prevail at trial or that safety
    was not the real reason for BNSF’s decision. It means only that Nall produced
    enough evidence to survive summary judgment.
    IV.
    “To show an unlawful retaliation, a plaintiff must establish a prima facie
    case of (1) engagement in an activity protected by the ADA, (2) an adverse
    employment action, and (3) a causal connection between the protected act and
    the adverse action. Once the plaintiff has established a prima facie case, the
    defendant must come forward with a legitimate, non-discriminatory reason for
    the adverse employment action. If such a reason is advanced, the plaintiff
    must adduce sufficient evidence that the proffered reason is a pretext for
    retaliation. Ultimately, the employee must show that ‘but for’ the protected
    18
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    No. 17-20113
    activity, the adverse employment action would not have occurred.” Seaman v.
    CSPH, Inc., 
    179 F.3d 297
    , 301 (5th Cir. 1999) (footnotes omitted); see also Feist
    v. La. Dep’t of Justice, Office of the Att’y Gen., 
    730 F.3d 450
    , 454 (5th Cir. 2013).
    Here, Nall claims that the “causal link” element of his prima facie case
    is the only element in dispute. “A ‘causal link’ is established when the evidence
    demonstrates that ‘the employer’s decision to terminate was based in part on
    knowledge of the employee’s protected activity.’” Medina v. Ramsey Steel Co.,
    
    238 F.3d 674
    , 684 (5th Cir. 2001) (quoting Sherrod v. Am. Airlines, Inc., 
    132 F.3d 1112
    , 1122 (5th Cir. 1998)).
    Nall satisfies the first element of his retaliation claim by pointing to his
    decision to file a complaint with the EEOC in December 2012. For the second
    element, Nall notes that “BNSF consistently refused to reinstate him after that
    date, including only three weeks later on January 8, 2013.” As to the third
    element, Nall argues that Dr. Gillis and Dickey were aware of Nall’s EEOC
    complaint because they admit that they provided information to the EEOC
    through another BNSF employee. Nall argues that there is a fact issue on this
    element because of how burdensome BNSF made the process for Nall to be
    considered “qualified” and misrepresentations BNSF made to the EEOC,
    including the fact that BNSF said it had not received additional information
    from Nall during a certain time period when it had.
    Nall does not provide sufficient evidence to support the “causal link”
    element of his retaliation claim. Although Nall sets forth some evidence to
    show that Dr. Gillis and Dickey, individuals involved in the decision-making
    process regarding Nall, eventually learned that Nall had filed a claim with the
    EEOC, he does not cite to any evidence that demonstrates that the subsequent
    decisions to keep him on leave were at all based on this knowledge. Without
    evidence of a causal link between the filing of his EEOC claim and his
    19
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    No. 17-20113
    continued placement on medical leave, Nall is unable to establish a prima facie
    case of an unlawful retaliation and his retaliation claims necessarily fail.
    V.
    For the above reasons, we REVERSE the grant of summary judgment as
    to Nall’s disability discrimination claims and AFFIRM the judgment as to the
    remaining claims. This case is REMANDED for further proceedings consistent
    with this opinion.
    20
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    No. 17-20113
    GREGG COSTA, Circuit Judge, specially concurring:
    The dissenting opinion reminds me of the baseball player who said,
    “They should move back first base a step to eliminate all those close plays.” 1
    Of course, there would still be close plays if the base were farther from home
    plate; those close plays would just be on different types of ground balls. So it
    is with the “objectively reasonable” standard. It changes the benchmark from
    whether the worker in fact posed a direct threat to himself and others to
    whether the company had a reasonable basis for thinking that.                            But
    articulating a belief that a worker posed such a risk is not an automatic get-
    out-of-trial card. There will still be close calls on whether the employer’s belief
    was reasonable. The majority opinion well details why this is such a case. And
    close calls in the law require that a jury rather than a judge be the umpire.
    I write separately to point out that this question—whether the railroad
    had good reason to believe Nall posed a safety risk—should be the only issue
    in this case. There is no doubt the railroad fired Nall because of those alleged
    safety concerns and that those concerns resulted from Nall’s Parkinson’s. So
    that disability is the reason Nall was fired. See Cannon v. Jacob Field Servs.
    N. America, Inc., 
    813 F.3d 586
    , 594 (5th Cir. 2016) (finding causation “easily
    resolve[d]” when a company revoked a job offer because of concerns that the
    applicant’s shoulder injury would prevent him from climbing a ladder).
    We might be uncomfortable with so readily calling the railroad’s action
    “discrimination.”       Today that word is usually equated with something
    1This seems like something Yogi Berra would have said. It turns out the comment
    came from John Lowenstein, the left-handed hitting side of an outfield platoon for the 1983
    World Champion Orioles. See The 11 Best Baseball Quotes of All Time, Bleacher Report (Aug.
    30, 2010), https://bleacherreport.com/articles/446520-the-10-best-baseball-qoutes-of-all-time.
    21
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    No. 17-20113
    invidious. 2 That is for understandable, indeed laudable, reasons given our
    history of pernicious, pervasive, and persistent prejudice against members of
    certain groups. But the reality is that employers lawfully discriminate all the
    time in making hiring and promotion decisions. Employers discriminate based
    on employees’ education, work experience, intelligence, and work ethic to name
    a few common examples. So the question often is not whether discrimination
    is occurring, but whether it is the type of discrimination that society, through
    its laws, has condemned.
    The Americans with Disabilities Act was a long overdue recognition that
    discrimination against the disabled belongs in the unlawful category. That
    discrimination is unjust to the disabled and deprives the economy of
    individuals who usually can fully and effectively perform their jobs.                    But
    Congress decided that not all disability discrimination should be unlawful.
    Because some disabilities may prevent some people from performing some jobs
    safely, the ADA provides a defense if the disabled employee will pose a safety
    threat to himself or others. 
    42 U.S.C. § 12112
    (b)(6), 12113(b); see also 
    42 U.S.C. § 12111
    (8) (defining a “qualified individual” under the ADA as a person
    “who, with or without reasonable accommodation, can perform the essential
    functions of the employment position”). This “direct threat” defense draws a
    2  That instinct led an employer to recently argue in the Sixth Circuit that an ADA
    plaintiff had to show animus. E.E.O.C. v. Dolgencorp, LLC, 
    899 F.3d 428
    , 436 (6th Cir. 2018).
    In rejecting that challenge to a verdict, Judge Sutton explained that:
    the Act speaks in terms of causation, not animus. An employer violates the Act
    whenever it discharges an employee ‘on the basis of disability’ (a necessary
    requirement for liability), not only when it harbors ill will (a sufficient way of
    establishing liability). Imagine a company that fired a visually impaired employee to
    save itself the minimal expense of buying special software for her. Without more, that
    would constitute termination ‘on the basis of disability,’ even if all of the evidence
    showed that cost-savings, not animus towards the blind, motivated the company.
    Id. at 436 (internal citations omitted).
    22
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    No. 17-20113
    line not between discrimination and its absence, but between unlawful and
    lawful discrimination.
    For cases like this one that turn on whether the disability renders the
    employee a safety risk (or the sometimes related statutory question whether
    the employee is unable to perform the essential functions of the job), there thus
    should not be a dispute about discriminatory intent. An employer cannot have
    it both ways by arguing that the termination was justified because the
    disability was dangerous while also maintaining that the safety-threatening
    disability was not the reason for the firing.      When a concern about the
    disability’s negative impact on workplace safety is the reason for the adverse
    action, the “causation” element of an ADA discrimination claim should be
    straightforward. See Cannon, 813 F.3d at 594; Rizzo v. Children’s World
    Learning Centers, Inc., 
    84 F.3d 758
    , 762 (5th Cir. 1996); E.E.O.C. v.
    Dolgencorp, LLC, 
    899 F.3d 428
    , 435 (6th Cir. 2018); McMillan v. City of New
    York, 
    711 F.3d 120
    , 129 (2d Cir. 2013).
    Yet courts and employment lawyers are conditioned to thinking of
    causation as the difficult element to prove in discrimination cases; it often is
    the contested one in Title VII disparate treatment cases alleging race or sex
    discrimination.     And when causation is disputed, courts and lawyers
    reflexively apply the burden shifting framework of McDonnell Douglas Corp.
    v. Green, 
    411 U.S. 792
     (1973).
    McDonnell Douglas is the “kudzu” of employment law. Cf. Zadeh v.
    Robinson, 
    902 F.3d 483
    , 498 (5th Cir. 2018) (Willett, J., concurring) (describing
    the “kudzu-like creep” of qualified immunity law). More than 57,000 court
    opinions have cited it. That’s more than 3 cases a day (including weekends and
    holidays!) since the opinion was issued 45 years ago. Although courts keep
    trying to trim back its invasion of those parts of employment law where it does
    23
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    No. 17-20113
    not belong—pleading standards, 3 jury instructions, 4 or appellate review of jury
    verdicts, 5 for example—its dominance continues. 6                  As the judge-created
    doctrine has been widely criticized for its inefficiency and unfairness even in
    the space it is supposed to occupy 7—a tool for evaluating the sufficiency of
    circumstantial evidence—we should not expand it beyond those bounds. 8
    I fear that is what is happening with the use of McDonnell Douglas to
    prove discrimination in Nall’s case. To be sure, Nall also tried to prove
    discrimination with direct evidence. But in doing so, he relied on the comments
    3  Swierkiewicz v. Sorema N.A., 
    534 U.S. 506
    , 515 (2002) (reversing a district court’s
    requirement that plaintiffs plead facts sufficient to raise an inference of discrimination under
    McDonnell Douglas).
    4 Walther v. Lone Star Gas Co., 
    952 F.2d 119
    , 127 (5th Cir. 1992) (explaining that a
    jury should not be instructed using the McDonnell Douglas standard).
    5 Stover v. Hattiesburg Pub. Sch. Dist., 
    549 F.3d 985
    , 993 (5th Cir. 2008) (noting that
    in an appeal from a jury verdict, the appellate court’s focus is on whether the record supports
    the jury’s finding of discrimination, “not on the plaintiff’s prima facie case or the McDonnell
    Douglas framework”).
    6 See generally Sandra F. Sperino, MCDONNELL DOUGLAS: THE MOST IMPORTANT
    CASE IN EMPLOYMENT DISCRIMINATION LAW (2018).
    7 See Coleman v. Donahoe, 
    667 F.3d 835
    , 862–63 (7th Cir. 2012) (Wood, J., concurring);
    Brady v. Office of Sergeant at Arms, 
    520 F.3d 490
    , 493–94 (D.C. Cir. 2008) (Kavanaugh, J.);
    D. Brock Hornby, Over Ruled, 21 GREEN BAG 2d 17, 22–26 (2017) (collecting extensive
    judicial and academic criticism of McDonnell Douglas); Sperino, supra note 6, at 317–27.
    8 McDonnell Douglas created the three-part framework to evaluate the evidence for a
    bench trial, see Hornby, 21 GREEN BAG 2d. at 22–23 (citing 
    411 U.S. at 802
    ), as the original
    Title VII did not grant a jury right (the 1991 Civil Rights Act added one, see 42 U.S.C.
    § 1981a(c)). See generally Beesley v. Hartford Fire Ins. Co., 
    717 F. Supp. 781
    , 782 (N.D. Ala.
    1989) (explaining that after Title VII’s passage, judges in the South denied jury requests for
    fear that juries would ignore the Civil Rights Act’s mandate); Vincenza G. Aversano, et al.,
    Jury Trial Right Under Title VII: The Need for Judicial Reinterpretation, 6 CARDOZO L. REV.
    613, 632–37 (1985) (suggesting that the drafters of Title VII omitted a jury right for fear that
    juries in the South would not give black plaintiffs a fair hearing). The Supreme Court has
    since endorsed its use in evaluating circumstantial evidence at the summary judgment stage
    to decide whether a case gets to the jury. See, e.g., Young v. United Parcel Serv., Inc., 
    135 S. Ct. 1338
    , 1355 (2015). At the same time, it has repeatedly admonished that the test was
    “‘never intended to be rigid, mechanized, or ritualistic.’” Swierkiewicz, 
    534 U.S. at 512
     (2002)
    (quoting Furnco Constr. Corp. v. Waters, 
    438 U.S. 567
    , 577 (1978)); St. Mary's Honor Ctr. v.
    Hicks, 
    509 U.S. 502
    , 519, (1993) (quoting same); U.S. Postal Serv. Bd. Of Governors v. Aikens,
    
    460 U.S. 711
    , 715 (1983) (quoting same).
    24
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    of certain supervisors, which itself requires recourse to another complicated
    multipart test. See Brown v. CSC Logic, Inc., 
    82 F.3d 651
    , 655 (5th Cir. 1996).
    There is a simpler and more convincing direct evidence route. To use a
    modern phrase, the firing “is what it is”: the railroad has all along
    acknowledged that it fired Nall because of concerns about his Parkinson’s.
    That’s discrimination on the basis of a disability. See Rizzo, 
    84 F.3d at 762
    (explaining that the court did not need to “engage in the McDonnell Douglas
    presumptions in order to infer discrimination” because the employer did “not
    deny that [the employee] was removed from driving duties because of her
    hearing impairment”); cf. Dolgencorp, LLC, 899 F.3d at 435 (explaining that
    an employer’s neutral justification does not come into play when there is direct
    evidence of disability discrimination). So, like many ADA cases, the hard issue
    in this one is not whether there was discrimination but whether that
    discrimination was justified.
    This case should be an example of why McDonnell Douglas is not the be-
    all and end-all of proving discrimination. There are other ways, including that
    the discrimination is obvious.
    25
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    No. 17-20113
    JAMES C. HO, Circuit Judge, dissenting:
    Under the Americans with Disabilities Act, an employer cannot be held
    liable where the plaintiff presents “a direct threat to the health or safety of
    other individuals in the workplace.” 
    42 U.S.C. § 12113
    (a)–(b). I agree with the
    majority that “[w]hether an employer has properly determined that a person
    poses a direct threat depends on ‘the objective reasonableness of [the
    employer’s] actions.’” Maj. Op. at 9 (emphasis added) (quoting Bragdon v.
    Abbott, 
    524 U.S. 624
    , 650 (1998)). But I part company with the majority’s
    interpretation and application of the “objective reasonableness” standard.
    Just because an employee disagrees with an employment decision—and
    just because a plaintiff’s expert disagrees with the underlying medical
    judgment that led to that employment decision—does not make the
    employment decision “objectively unreasonable.” To warrant trial, a plaintiff
    must present evidence that no reasonable person could agree with the
    employer’s determination—evidence that it was objectively unreasonable to
    conclude that the plaintiff presented a direct threat to the health or safety of
    others. Michael Nall presented no such evidence here. All he says, in essence,
    is that he and his experts disagree with his employer and its experts.
    Accordingly, the district court was correct to render summary judgment for
    BNSF.
    Under the majority’s approach, however, a plaintiff is entitled to take a
    case to trial so long as he can identify some procedural irregularity in the
    process used by his employer to determine whether or not he presents a direct
    threat. I disagree. There is no basis for imposing liability under the ADA
    based on process concerns alone. There is liability only if the employer’s
    determination of a direct threat is objectively unreasonable. And the majority
    26
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    has not identified any process irregularity that renders BNSF’s medical
    conclusion objectively unreasonable. I respectfully dissent.
    I.
    The development of the “objectively reasonable” standard and its
    application in employment discrimination cases helps inform the way that we
    should apply the standard—and where the majority’s analysis falters.
    Generally, the “direct threat” defense balances the ADA’s abhorrence of
    irrational bigotry toward the disabled with the reasonable safety concerns of
    industry and the need to give employers room to operate their businesses in
    good faith. See Bragdon, 
    524 U.S. at 649
     (“The ADA’s direct threat provision
    stems from the recognition . . . of the importance of prohibiting discrimination
    against individuals with disabilities while protecting others from significant
    health and safety risks.”).
    To maintain this balance, the Supreme Court first articulated the
    “objectively reasonable” standard under the public accommodations provisions
    of the ADA. See Bragdon, 
    524 U.S. at
    649–50. The Court held that the
    “existence, or nonexistence, of a [direct threat] must be determined from the
    standpoint of the person [allegedly violating the ADA], and the risk assessment
    must be based on medical or other objective evidence.” 
    Id. at 649
    . The Court
    emphasized that courts should be concerned only about the “objective
    reasonableness” of the evidence. 
    Id. at 650
    .
    The textual similarities between the public accommodations provisions
    and the employment provisions have led some of our sister courts to adopt the
    Bragdon standard for employment claims. See, e.g., Michael v. City of Troy
    Police Dep’t, 
    808 F.3d 304
    , 307 (6th Cir. 2015); Jarvis v. Potter, 
    500 F.3d 1113
    ,
    1122 (10th Cir. 2007) (“We recognize that Bragdon was not an employment
    case. . . . But the Court explicitly pointed out that the ADA contains parallel
    27
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    language in its employment provisions and we see no reason not to apply
    Bragdon’s analysis to employment cases.”) (internal citations omitted). 1
    In a faithful application of the “objectively reasonable” standard, the
    question for juries is not whether an employer was “right” to find a direct
    threat to safety, but whether it was reasonable to do so. See, e.g., Jarvis, 
    500 F.3d at 1122
     (“In evaluating an employer’s direct-threat contention, the fact-
    finder does not independently assess whether it believes that the employee
    posed a direct threat.”). The distinction between what is “right” and what is
    simply “reasonable” is critical, because the ADA does not forbid reasonable
    reliance on allegedly incorrect experts, but rather, irrational discrimination
    against the disabled. As a result, “[a] medical opinion may conflict with other
    medical opinions and yet be objectively reasonable.” Michael, 808 F.3d at 307
    (citing Bragdon, 
    524 U.S. at 650
    ).
    So it is not enough that experts disagree over whether or not Nall
    presents a direct threat to the health or safety of others. Rather, there must
    be evidence that it was objectively unreasonable for BNSF to reach that
    conclusion.
    II.
    BNSF reasonably relied on the evidence available to conclude that Nall
    was a “direct threat.” The record in this case shows that BNSF employees had
    sincere (and serious) concerns about Nall’s ability to do his job—concerns that
    1 Compare 
    42 U.S.C. § 12113
    (b) (providing an employer may have “a requirement that
    an individual shall not pose a direct threat to the health or safety of other individuals in the
    workplace”) and 
    42 U.S.C. § 12111
    (3) (“The term ‘direct threat’ means a significant risk to
    the health or safety of others that cannot be eliminated by reasonable accommodation.”)
    (employment), with 
    42 U.S.C. § 12182
    (b)(3) (“Nothing in this subchapter shall [apply] where
    [an] individual poses a direct threat to the health or safety of others. The term ‘direct threat’
    means a significant risk to the health or safety of others that cannot be eliminated by a
    modification of policies, practices, or procedures or by the provision of auxiliary aids or
    services.”) (public accommodations).
    28
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    No. 17-20113
    were far from dispelled by Nall’s independent evaluations. Moreover, BNSF’s
    field test confirmed its employees’ concerns, and demonstrated that Nall could
    not do his job safely.     Nall responds, in essence, that he and his doctors
    disagree.
    Nall and BNSF agree about his core job responsibilities:        operating
    switches, coupling air hoses, making quick hand and leg movements,
    performing training and equipment inspections, climbing on and off
    equipment, and maintaining good balance and a steady gait. Nall agrees that
    conductor and switchman are physically demanding positions for which safety
    is paramount. Furthermore, Nall admits that, on top of the express, written
    requirements of his job, it is important for him to be able to react quickly and
    to maintain his balance.
    Nall’s co-workers were the first to notice that something was wrong.
    They told BNSF that Nall was taking a long time to repeat information back
    to the dispatcher, and that he was also having difficulty walking along the
    track. BNSF memorialized these concerns in its original “Notice of Leave”:
    employees “observed [Nall] having difficulty getting on and off engines as a
    result of stumbling as well as displaying a lack of concentration when receiving
    mandatory directives from dispatchers.” Nall’s response is essentially that he
    disagrees with his co-workers’ characterizations.
    After initially being placed on leave, Nall consulted four different
    doctors. They all reached the bottom line conclusion that Nall could perform
    his job. But three of them also confirmed the very concerns that gave BNSF
    pause. First, Dr. Nishith Majmundar observed that Nall had cogwheeling
    rigidity (or stiffness) and problems with balance (for which Nall blamed his
    shoes), and accordingly recommended that Nall increase the dosage of his
    medication. Second, Clinical Neuropsychologist Stephen Lippold noted some
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    No. 17-20113
    short-term verbal memory problems. Third, Licensed Occupational Therapist
    Mary Karasek noted that Nall had some problems walking on an uneven
    surface, a “mild, shuffling” gait, difficulty walking on a treadmill, and a
    delayed reaction time. Her conclusion was that Nall was able to do what his
    job required, but that his balance could be a concern. Only Doctor Joseph
    Jankovic was able to give Nall an unequivocal statement of support.            He
    concluded that Nall was able to do his job, and that his “balance and gait has
    never been an issue.”
    Not surprisingly, then, these evaluations did not assuage BNSF. Despite
    their positive bottom-line conclusions, they also suggested that the concerns of
    Nall’s co-workers might be valid. So BNSF asked Nall to take part in a field
    test that required him to perform various tasks under supervision. Though he
    successfully completed the tasks, one employee described Nall’s field test as
    “[p]robably one of the most blatant ‘there is no way this guy is safe’ field tests”
    she had ever seen.      Findings from the field test highlight that Nall was
    confused while interpreting car numbers and the “switch list”; he had difficulty
    holding on to the equipment towards the end of the ride; he walked between
    moving equipment; he gave the wrong signal to the engineer; and he exhibited
    other minor physical problems that concerned observers. After the field test,
    BNSF told Nall he was still not safe to return to work.
    Nall agrees that the field test required him to do things he would
    normally have to do for his job, but he disagrees with the conclusions of the
    field test. He disputes that he broke any rules. He also disputes some of the
    characterizations of his abilities. For example, he claims he did not have
    trouble with his balance. According to Nall, any concerns about his balance
    are just “what [the physical therapist] feels like, but [Nall] didn’t have a
    problem with his balance.” Nall “personally think[s he] did great on the test.”
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    But he does not claim that the therapist who wrote the evaluation had any
    reason to make up the observations. The closest he comes to disputing the
    legitimacy of the field test is saying that BNSF was “looking for something
    wrong” with his performance, and that it was focusing on the bad rather than
    the good.
    III.
    At most, the evidence cited in Nall’s favor shows that his experts
    disagree with BNSF’s experts on their bottom-line conclusions. But it was
    entirely reasonable for BNSF to give more weight to its own evaluation. After
    all, the things that BNSF evaluated in the railyard field test are not the kinds
    of things that doctors could test in their offices.
    The evidence marshaled by Nall and the majority does not reach the core
    question of whether or not BNSF was objectively reasonable in finding a direct
    threat to health or safety. At most, it establishes merely a good faith dispute
    between experts after an orderly process: Long after BNSF first learned about
    Nall’s original diagnosis, his co-workers brought safety concerns to the
    company’s attention. Nall was then evaluated by independent doctors who
    confirmed some of those very same concerns. BNSF then conducted a field test
    to observe whether those concerns would manifest themselves in his job
    performance. And because they did, BNSF reasonably concluded that he was
    unsafe to return to work.
    The majority addresses the record evidence at too high a level of
    generality. For example, the majority says that the reports from Nall’s doctors
    “concluded that Nall could safely perform the tasks of a trainman listed on the
    medical status form that BNSF originally provided to Nall.” Maj. Op. at 12.
    As noted, however, three out of Nall’s four doctors confirm concerns about his
    balance and physical ability.
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    No. 17-20113
    Under the objective reasonableness standard, we do not simply divide
    the evidence into “generally positive” and “generally negative” categories,
    announce the existence of a fact dispute, and then proceed to trial. Rather, we
    must separately determine whether any evidence exists that the employer was
    objectively unreasonable in relying on the negative evidence. Otherwise, all it
    would take is disagreement by a single doctor to foreclose summary
    judgment—even if the employer reasonably relied on expert medical opinion.
    The evidence cited by Nall and the majority creates no issue of fact
    concerning whether BNSF behaved reasonably and relied on reasonable
    medical opinion. First, the majority cites medical reports from Nall’s experts
    concluding that Nall could do his job safely. But these reports do not question
    the integrity of BNSF’s evaluation. To the contrary, they confirm some of
    BNSF’s concerns about Nall’s physical and mental ability.             Second, the
    majority asserts that Nall completed all of the tasks in his first field test. While
    true as far as it goes, it was the manner in which Nall completed the tasks that
    led to BNSF’s decision. Third, the majority contends that we have previously
    found a disputed field test sufficient to preclude summary judgment. But in
    EEOC v. E.I. Du Pont de Nemours & Co., we held only that an employee who
    fails a field test at first, but then later demonstrates that she is capable of
    performing her job duties, is entitled to present that dispute to the jury. See
    
    480 F.3d 724
    , 728 (5th Cir. 2007) (“After the [1999 field test] confirmed [the
    employee’s] walking impairment, [the employer’s] physicians concluded that
    she should be medically restricted from walking anywhere at the plant. . . .
    [The employee’s] attempt to get her job back was rebuffed by [the employer],
    even though she demonstrated in 2003 that she could walk an evacuation route
    without assistance.”). That is not this case. To the contrary, the evidence here
    if anything indicates that Nall’s condition has worsened, not improved.
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    Finally, the majority notes that Nall disputes some of BNSF’s evaluation and
    his co-workers’ evaluations. But mere disagreement does not create an issue
    of fact—because it does not establish the unreasonableness of BNSF’s reliance
    on those evaluations.
    None of this evidence purports to show that BNSF relied on an
    objectively unreasonable opinion. At most, the evidence would simply allow
    the jury to reach a different conclusion about the competing experts. Cf.
    Michael, 808 F.3d at 307 (“An employer’s determination that a person cannot
    safely perform his job functions is objectively reasonable when the employer
    relies upon a medical opinion that is itself objectively reasonable.”) (internal
    citation omitted). To proceed to trial under these circumstances would replace
    the objective reasonableness standard with a de novo review of the employer’s
    experts.
    IV.
    According to the majority, “the question on appeal is not whether it was
    reasonable for BNSF to conclude that Parkinson’s disease symptoms prevented
    Nall from safely performing his duties; the question is whether BNSF came to
    that conclusion via a reasonable process that was not, as Nall alleges,
    manipulated midstream to achieve BNSF’s desired result of disqualifying
    him.” Maj. Op. at 11. I disagree with the majority’s process concerns for two
    reasons.
    To begin with, I see no basis for a process-based liability theory under
    the ADA. To my mind, Nall can prevail only if BNSF lacks a reasonable
    medical basis for concluding that he presents a direct threat to health or
    safety—and not based on process concerns alone. After all, an employee is a
    direct threat if he poses a “significant risk to the health or safety of others that
    cannot be eliminated by reasonable accommodation.” 
    42 U.S.C. § 12111
    (3).
    33
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    And as the majority acknowledges, we ask only whether it was reasonable for
    the employer to conclude that its employee was a direct threat—not whether
    it was correct.
    So an employer cannot be held liable if it reaches a reasonable medical
    judgment that an employee presents a direct threat to the health or safety of
    others. The ADA does not impose liability based on perceived procedural
    irregularities alone. To quote the Sixth Circuit: “An employer’s determination
    that a person cannot safely perform his job functions is objectively reasonable
    when the employer relies upon a medical opinion that is itself objectively
    reasonable.” Michael, 808 F.3d at 307 (emphasis added) (collecting cases). See
    also, e.g., Bragdon, 
    524 U.S. at 650
     (“[C]ourts should assess the objective
    reasonableness of the views of health care professionals.”). An employer can
    only be held liable based on process concerns if the procedural irregularities
    render the employer’s medical conclusion unreasonable.
    Second, the majority has not identified any process concerns that should
    call into question the reasonableness of BNSF’s medical conclusions. The
    majority primarily faults BNSF for what it characterizes as shifting job
    requirements and disqualification criteria—specifically, the addition of quick
    reaction times and good balance as essential job criteria. But Nall himself
    conceded that his job required him to have quick reaction times and good
    balance:
    Q. Do you agree it’s important when you’re performing the
    conductor job or the switchman job or another trainman job, it’s
    important to be able to react quickly if necessary?
    [Nall]. Yes, sir.
    Q. Okay. And do you agree it’s important to be able to maintain
    balance and not slip or fall when you’re working those positions?
    A. Yes, sir.
    34
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    No. 17-20113
    And it was precisely Nall’s reflexes and his lack of balance that concerned
    BNSF.    In contrast, in Riel v. Electronic Data Systems Corp., the parties
    actually disagreed about essential job functions, thereby creating an issue of
    material fact for a jury to resolve. See 
    99 F.3d 678
    , 682–83 (5th Cir. 1996).
    Moreover, as previously noted, among Nall’s own four doctors, three of
    them expressed concern with his abilities. And the field test further confirmed
    all of BNSF’s fears. In sum, the process employed by BNSF yielded reasonable
    medical judgments on which BNSF reasonably relied.
    ***
    Although the majority opinion appears to state the applicable legal
    standard correctly, it is the majority’s application of that standard—and not
    just its mere recitation—that will form circuit precedent. The majority has set
    this circuit on a road that is contrary to both the vision established by Congress
    and the very rule that it purports to adopt. I respectfully dissent.
    35