Carter v. Wallace & Gale Asbestos Settlement Trust , 439 Md. 333 ( 2014 )


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  • Sonia Carter, et al. v. Wallace & Gale Asbestos Settlement Trust, No. 84, September Term,
    2013, Opinion by Greene, J.
    WRONGFUL DEATH – ASBESTOS LITIGATION – APPORTIONMENT OF
    DAMAGES
    In Maryland, apportionment of damages among different causes is only appropriate where
    the injury in question is reasonably divisible among multiple causes. Where the injury in
    question is death caused by lung cancer, and where there is a single tortfeasor involved in the
    litigation, apportionment of damages is inappropriate.
    WRONGFUL DEATH – JOINDER OF USE PLAINTIFFS – STATUTE OF
    LIMITATIONS
    Under the state of the law at the time of trial in the present case, which was prior to this
    Court’s decision in University of Maryland Medical Systems Corp. v. Muti, 
    426 Md. 358
    , 
    44 A.3d 380
    (2012) and prior to the amendments to Maryland Rule 15-1001 (effective January
    1, 2013), designated use plaintiffs were considered real parties in interest that were not
    required to formally join in the proceeding in order to share in an award for damages. Absent
    any clear direction or requirement that formal joinder was necessary, a use plaintiff’s
    knowing consent to the litigation on his or her behalf and active participation in the litigation
    was the functional equivalent of joinder. So long as knowing consent to, and active
    participation in, the litigation occurred prior to the expiration of the statute of limitations, a
    use plaintiff could maintain a claim for damages where there was no formal joinder.
    Circuit Court for Baltimore City
    Case No.: 24-X-09-000419
    Argued Date: May 5, 2014
    IN THE COURT OF APPEALS
    OF MARYLAND
    No. 84
    September Term, 2013
    SONIA CARTER, et al.
    v.
    THE WALLACE & GALE ASBESTOS
    SETTLEMENT TRUST
    Barbera, C.J.
    Harrell
    Battaglia
    Greene
    McDonald
    Rodowsky, Lawrence F. (Retired, Specially
    Assigned),
    Raker, Irma S. (Retired, Specially
    Assigned)
    JJ.
    Opinion by Greene, J.
    Battaglia and Raker, JJ., concur and dissent.
    Filed: July 21, 2014
    In the present case, we are called to decide whether apportionment of damages is
    appropriate in the wrongful death and asbestos litigation context, and whether the “use
    plaintiffs”1 here are precluded from recovering damages by not formally joining in the
    proceedings. We reverse the judgment of the Court of Special Appeals and hold that the
    intermediate appellate court erred when it held that the trial court erroneously refused to
    allow expert testimony and jury instructions on apportionment of damages, and when it held
    that the failure of the use plaintiffs to formally join in the action before the statute of
    limitations had run precluded them from recovering damages.
    I. FACTUAL AND PROCEDURAL HISTORY
    A. The Parties and Cases
    This case is an appeal from judgments in favor of plaintiffs and use plaintiffs in four
    asbestos cases that were consolidated for trial in Baltimore City. All of the plaintiffs were
    separately awarded damages for their wrongful death claims against Wallace & Gale
    Asbestos Settlement Trust (“WGAST”). The four decedents who are the subject of these
    consolidated cases, Levester James (“James”), Mayso A. Lawrence Sr. (“Lawrence”), Rufus
    E. Carter (“Carter”), and Roger C. Hewitt, Sr. (“Hewitt”), all worked for various companies
    (most frequently at Bethlehem Steel and American Smelting and Refining Company) where
    1
    A use plaintiff in common law pleadings is “[a] plaintiff for whom an action is
    brought in another’s name,” Black’s Law Dictionary 1579 (8th ed. 2004), and “who does not
    join in the action,” Md. Rule 15-1001(b). For purposes of this opinion, we use the term “use
    plaintiffs” for all plaintiffs whose names were preceded by the phrase “to the use of” in the
    complaints. We make this designation to differentiate between the original party plaintiffs
    and the original use plaintiffs and to avoid confusion when discussing the two classes.
    Wallace & Gale, Co. (“W&G”) installed asbestos-containing products.            W&G was a
    Baltimore-based insulation and roofing contractor that was established in 1881.
    W&G initially handled all asbestos claims filed against it until W&G filed a voluntary
    petition for relief under Chapter 11 of the United States Bankruptcy Code on November 16,
    1985. Thereafter, the United States Bankruptcy Court for the District of Maryland entered
    an order affirming the Fourth Amended Joint Plan of Reorganization. This created WGAST,
    an entity that assumed liability for asbestos claims against W&G. On November 2, 2010, the
    United States Bankruptcy Court for the District of Maryland approved the “Second Amended
    and Restated Asbestos BI Claims Resolution Procedures.” In part, the procedures provided
    that claims may be brought against WGAST by either December 28, 2010, or the statute of
    limitations date, whichever is later. Based on the dates when the four complaints were
    amended to add wrongful death counts, the last dates to bring claims under this order were
    December 28, 2010 in the Carter and James cases, February 21, 2011 in the Lawrence case,
    and July 24, 2012 in the Hewitt case.
    The Carter case
    Carter worked as a laborer and crane operator at the Baltimore-based copper refinery
    American Smelting and Refining Company (“ASARCO”) from 1966 to 1975. He was
    exposed to asbestos from insulation applied to pipes. Carter died from lung cancer in
    November 2003. On February 17, 2006, Johanna Carter, as personal representative of
    Carter’s estate, and Sonia, Carter’s surviving daughter, filed an amended short form
    2
    complaint against numerous defendants, claiming loss of consortium, negligence (survival),
    strict liability (survival), conspiracy, fraud, and wrongful death. The complaint listed
    Carter’s other children as use plaintiffs: Kenneth, Rufus Jr., and Natasha. Thereafter, Sonia
    filed a Notice to Substitute Parties, advising that Johanna had been removed as personal
    representative and Sonia had been appointed as successor because Johanna’s marriage to
    Carter had been previously annulled.
    The James case
    James was a laborer in ASARCO’s tank room from 1968 to 1972, where he was
    exposed to asbestos in pipe insulation. James died from lung cancer on July 4, 2004, at age
    70. On January 5, 2007, James’s stepdaughter Willean Peoples, as personal representative
    of his estate, filed a short form asbestos complaint against numerous defendants, including
    WGAST, containing counts of negligence (survival), strict liability (survival), conspiracy,
    fraud, and wrongful death. James’s children, Kevin and Monica, and his wife, Katherine,
    were named in the complaint as use plaintiffs.
    The Lawrence case
    Lawrence worked as a laborer at ASARCO from 1968 to 1969 and in Bethlehem
    Steel’s “68-inch hot strip mill” at Sparrows Point from 1970 to 1979, where he was exposed
    to asbestos from pipe insulation. Lawrence died from lung cancer on October 8, 2007, at age
    65. On February 21, 2008, Arthur L. Drager, as personal representative of Lawrence’s estate
    and Bernice, Lawrence’s widow, filed a short form asbestos complaint against numerous
    3
    defendants, including WGAST, alleging negligence (survival), strict liability (survival),
    conspiracy, fraud, and wrongful death. Lawrence’s seven children, Mayso Jr., Tyrone,
    Cephas, Sean, Elaine, Phaedra, and Tanesha, were named in the complaint as use plaintiffs.
    The Hewitt case
    Hewitt worked as a laborer, mechanic steamfitter, and pipefitter at the Pennsylvania
    Railroad from 1943 to 1944, and as a laborer and crane operator at Bethlehem Steel from
    1946 to 1978, where he was exposed to asbestos in pipe insulation supplied by W&G.
    Hewitt was a long-time smoker, smoking half a pack to a full pack of cigarettes every day
    for 65 years. He died as a result of complications from lung cancer on December 20, 2008,
    at age 81. On September 7, 2006, prior to his death, Hewitt and his wife, Annette, filed a
    short form asbestos complaint against numerous defendants, alleging that Hewitt had been
    diagnosed with asbestosis and asbestos-related diseases in April 2006. On January 5, 2007,
    plaintiffs filed an Amendment by interlineation, adding WGAST as a defendant. Following
    Hewitt’s death, Roger Jr., Hewitt’s son, filed a Notice to Substitute Parties, notifying the
    Circuit Court for Baltimore City and the parties that he, as personal representative of
    Hewitt’s estate, was added as a party plaintiff in the survival action. On July 24, 2009,
    Annette and Roger Jr. filed an amended short form complaint, incorporating the counts set
    forth in the original complaint (loss of consortium, negligence (survival), strict liability
    (survival), conspiracy, and fraud) and added a count alleging wrongful death. Hewitt’s
    daughters, Penny and Idalyn, were named in the amended complaint as use plaintiffs. Roger
    4
    Jr. also filed an “Amendment by Interlineation to Add Disease Process,” alleging that Hewitt
    also suffered from lung cancer causally connected to his exposure to asbestos and asbestos
    products.
    B. The Proceedings Below
    On November 10, 2009, the Circuit Court for Baltimore City consolidated ten asbestos
    cases for trial, including the four at issue in this appeal. The trial was scheduled to begin on
    January 18, 2011. According to the scheduling order, plaintiffs were required to produce all
    fact witnesses for deposition by September 15, 2010, but this did not occur. Plaintiffs allege
    that it is typical of all asbestos cases tried in Baltimore City to defer all expert and family
    member depositions until the completion of settlement negotiations, and that this process was
    the reason for the delay in producing such fact witnesses. On January 3, 2011, WGAST filed
    two motions to exclude all fact and expert witnesses. The trial judge denied both motions
    and allowed settlement negotiations between all the parties to continue.            Ultimately,
    settlements were entered into among all plaintiffs and defendants except for defendant
    WGAST. The trial judge thereafter held summary judgment motions hearings, granted
    summary judgment in four other plaintiffs’ cases, and denied summary judgment in the four
    cases at bar. Following those hearings, the only remaining claims were against WGAST in
    the Carter, James, Lawrence, and Hewitt cases, which were consolidated for trial and are
    now at issue in this appeal.
    On January 17, 2011, the day before the scheduled trial date, the trial judge directed
    5
    the plaintiffs to provide discovery and participate in depositions prior to the commencement
    of trial, which was continued to February 9, 2011. During that time, WGAST conducted
    thirty-one depositions, including depositions of experts, party plaintiffs, and individuals
    identified as use plaintiffs. A fifteen-day jury trial took place between February 9 and March
    2, 2011, and the jury ultimately returned verdicts in favor of the plaintiffs, including those
    listed as use plaintiffs.
    Apportionment in the Hewitt case
    Hewitt worked at Bethlehem Steel for over thirty years and smoked half a pack to a
    pack of cigarettes a day. He was diagnosed with lung cancer in October 2008 and died two
    months later. During trial, Dr. Steven Zimmet testified that asbestos exposure was a
    substantial contributing factor to Hewitt’s lung cancer and that smoking was also a cause of
    Hewitt’s lung cancer. Dr. Zimmet further testified that he could not differentiate between
    the two causes because the two exposures are “not just additive, they are synergistic 2 which
    means they multiply exposures.”        WGAST admitted that Hewitt had asbestosis that
    contributed to his lung cancer and requested that the Circuit Court allow apportionment of
    the damages. Hewitt’s counsel objected on the grounds that in Maryland, apportionment had
    never been applied in the asbestos litigation context and also, that apportionment was
    2
    “Synergistic” is defined as “acting together; enhancing the effect of another force
    or agent.” The Sloane-Dorland Annotated Medical-Legal Dictionary 698 (1987) (citing, e.g.,
    Murphy v. Owens-Corning Fibreglas Corp., 
    447 F. Supp. 557
    , 571 (D. Kan. 1977) (“The
    entire theory of the plaintiff’s case at trial was that the synergistic reaction of ‘chemicals +
    heat + dust’ produced the pulmonary disability for which relief was sought.”)).
    6
    theoretically impossible in this situation. WGAST’s counsel responded that there was a
    “strong foundation” for apportionment and that their expert, Dr. Gerald R. Kerby, would
    testify that apportionment of damages was appropriate here, based on epidemiological and
    other scientific studies. The trial judge expressed doubt concerning the viability of this
    theory, stating:
    No, I understand there is a statistical basis for likelihood of risk. But in a
    given – with a given plaintiff, I don’t know how you can apportion it. But, you
    know, I guess, the witness can say what he says if he is qualified to say it. But
    I’m not going to give an instruction on this because it is not – I don’t perceive
    it at this point to be the law in these types of cases.
    ****
    You can apportion risk. I don’t know how, in an individual plaintiff[’s] case,
    you can apportion damages. I don’t know. It is a mystery to me. We’ll find
    out. The doctor will show up and we will hear about it.
    WGAST’s counsel then filed an offer of proof concerning Dr. Kerby’s testimony. It
    provided that Dr. Kerby was of the opinion that Hewitt’s occupational exposure to asbestos
    as well as his history of cigarette smoking were both substantial contributing factors to the
    development of his lung cancer and resulting death. Moreover, the offer of proof stated that
    Dr. Kerby would further opine that the relative contribution of Hewitt’s tobacco use and of
    Hewitt’s exposure to asbestos to the development of his lung cancer was 75% and 25%,
    respectively. The trial judge accepted the offer of proof but excluded Dr. Kerby’s testimony
    on apportionment of damages. Dr. Kerby was still permitted to testify as to the statistical
    likelihoods of disease from certain sources.
    The Circuit Court judge also declined to give WGAST’s requested jury instruction on
    7
    apportionment of damages, which read:
    If you decide that plaintiff suffered from an asbestos-related lung disease for
    which the defendant is responsible, and that plaintiff had a history of smoking
    and/or tobacco exposure, and that plaintiff’s asbestos exposure and plaintiff’s
    smoking history and/or tobacco exposure were both substantial contributing
    factors in the development of plaintiff’s lung disease, then you shall apportion
    the damages between plaintiff’s asbestos exposure and the plaintiff’s smoking
    history/tobacco exposure. This apportionment of damages should be based on
    the percentage you believe each factor contributed to plaintiff’s lung disease.
    The trial judge stated in response:
    It is just not the law in these cases. But I understand the theory. Although it
    does strike me, with all due respect. It is kind of a very unscientific wild guess
    you’re asking the jury to make. I mean, there is no real basis in the record, nor
    could there ever be.
    The court also declined to distribute to the jury WGAST’s proposed verdict sheets, which
    asked the jury to determine the percentage of compensatory damages that were related to
    Hewitt’s cigarette smoking and to his asbestos exposure, and whether the jury could, by a
    preponderance of the evidence, apportion damages between the two different causes.
    Use Plaintiffs
    On December 20, 2010, prior to the commencement of trial, the plaintiffs filed their
    proposed voir dire. Question two asked the following regarding the plaintiffs: “Is any
    member of the panel or any member of your immediate family, or close circle of friends
    related to or otherwise acquainted with the plaintiffs” and then proceeded to list all 25
    interested parties, including the decedents, party plaintiffs, and use plaintiffs. During
    opening statements, plaintiffs’ counsel referred to the use plaintiffs as “family members” and
    8
    the four decedents as “plaintiffs.” Most of the use plaintiffs testified and were subject to
    cross-examination by WGAST’s counsel.3
    After plaintiffs concluded their case, WGAST filed a Motion for Directed Verdict,
    arguing that the statute of limitations had run and that, therefore, the use plaintiffs in the
    James and Carter cases were precluded from joining the action as required by Maryland Rule
    15-1001. In an oral motion for judgment “against all the plaintiffs’ cases on all counts,”
    WGAST’s counsel argued that all use plaintiffs failed to join as necessary parties and that
    their identification in the complaint was only to provide them with notice of the action. The
    court denied the motion for judgment with leave for WGAST’s counsel to renew the motion
    at the conclusion of the presentation of all the evidence. When WGAST’s counsel renewed
    the motion at the close of all the evidence, the trial judge in effect denied the motion for
    judgment, reasoning:
    What is the harm of leaving them in, let them render a judgment, that way if
    it goes up on appeal and they happen to be right—it doesn’t matter whether
    they are right, if they happen to convince several people that they are right,
    then there is no—they have to go back and retry the use plaintiffs. . . . If I
    decide [WGAST’s counsel] is right, I just strike all the verdicts against the use
    plaintiffs and it goes up on appeal and they can deal with it however they
    choose to deal with it.
    Verdicts and Judgments
    The jury returned verdicts in favor of the plaintiffs and use plaintiffs in the following
    3
    Twelve of the fifteen use plaintiffs were deposed and testified at trial. The three that
    did not participate via deposition or testimony were unavailable at the time: two were
    incarcerated, and one was disabled and unable to hear.
    9
    amounts: (1) Carter case: $2,017,302.50; (2) James case: $2,035,684.71; (3) Lawrence case:
    $2,930,532.09; and (4) Hewitt case: $2,686,686.07. On May 12, 2011, the Circuit Court
    entered orders in the four cases, reducing the jury verdicts after application of the cap on
    non-economic damages, bankruptcy settlement payments, and joint tortfeasor credit for
    appellant’s cross-claims against another defendant (i.e., pro rata share allocation). The jury
    verdicts were reduced to the following judgments:
    (1) The Carter case:
    Survival:                                  $499,953.41(total)
    Wrongful Death:                            $476,250.00 (total)
    Plaintiff Sonia Carter:                    $119,062.50
    Use Plaintiff Rufus Carter, Jr.:           $119,062.50
    Use Plaintiff Kenneth Carter:              $119,062.50
    Use Plaintiff Natasha Sloan:               $119,062.50
    Total Judgment:                            $976,203.41
    (2) The James case:
    Survival:                                  $503,959.39 (total)
    Wrongful Death:                            $476,250.50 (total)
    Use Plaintiff Katherine James:             $238,125.50
    Use Plaintiff Monica James:                $119,062.50
    Use Plaintiff Kevin James:                 $119,062.50
    Total Judgment:                            $980,209.89
    (3) The Lawrence case:
    Survival:                                  $261,371.24 (total)
    Wrongful Death:                            $521,250.00 (total)
    Plaintiff Bernice Lawrence:                $108,593.74
    Use Plaintiff Elaine McPherson:            $32,578.13
    Use Plaintiff Mayso Lawrence, Jr.:         $32,578.13
    Use Plaintiff Phaedra Bailey:              $32,578.13
    Use Plaintiff Tyrone Lawrence:             $32,578.13
    Use Plaintiff Cephus Lawrence:             $32,578.13
    Use Plaintiff Sean Lawrence:               $32,578.13
    Use Plaintiff Tanesha Lawrence:            $32,578.13
    10
    Total Judgment:                            $782,621.24
    (4) The Hewitt case:
    Survival:                                  $687,394.00 (total)
    Loss of Consortium:                        $169,050.97 (total)
    Wrongful Death:                            $469,050.98 (total)
    Plaintiff Annette Hewitt:                  $172,808.26
    Plaintiff Roger C. Hewitt, Jr.:            $98,747.57
    Use Plaintiff Idalyn Williams:             $98,747.57
    Use Plaintiff Penny Hewitt:                $98,747.57
    Total Judgment:                            $1,325,495.95
    Post-Trial Proceedings
    Following the Circuit Court’s rendering of recorded judgments, WGAST’s counsel
    filed a Motion for Judgment Notwithstanding the Verdict, a Motion for New Trial, and a
    Motion for a Remittitur (the “post-trial motion hearing”), again raising the issues of
    apportionment in the Hewitt case and the status of the use plaintiffs in all cases. The court
    held a hearing on the post-trial motion on July 21, 2011. After hearing arguments from both
    sides, the trial judge ruled from the bench on the apportionment issue, stating:
    All right. I’m going to deny. I find it a fascinating argument. I’m going to deny
    it. It will be preserved for appeal, if you can convince the Court of Special
    Appeals/Court of Appeals with this. It’s a fascinating argument.
    I just have no idea how—we’re already putting on the jury’s shoulders and into
    their heads material that, sitting here listening to these cases, I have listened
    to how many, eight or ten or how many I’ve heard is really—approaches the
    unknowable to start with. And then you start having them divide up and
    apportion different levels of the unknowable among different parties. It’s just
    too much.
    It’s a fascinating issue. I think that if the legislature wanted to pass a bill
    saying in all cases where there’s smoking and there’s asbestos inhalation, we’ll
    divide the liability in the following fashion based upon epidemiological
    11
    studies, I guess they could do that.
    If the Court of Appeals wants to send us down that path to another swamp, I
    suppose we could do that. It’s an interesting issue. Technologically, it’s
    interesting. But we don’t have any basis for drawing an intelligent conclusion
    regarding what we’re going to plug into the matrix. So no, we’re not doing
    that.
    As to the issue of joinder of the use plaintiffs, following arguments from both parties, the
    trial judge stated that he was going to delay his decision on “this mess with the use
    plaintiffs.” On October 13, 2011, the Circuit Court held a brief hearing on this sole
    outstanding issue, where the trial judge decided that “there is no question that use plaintiffs
    have to be included. They’re supposed to be included. They’re necessary parties.” He further
    opined:
    Honestly, I don’t know what the right answer is. But I’m going to rule in favor
    of the plaintiffs on this and get this on to appeal by allowing the verdicts,
    although I have serious qualms, quite frankly, in my own mind as to how you
    can throw someone in.
    I did it, admittedly. I did it, so I might as well deal with the consequences of
    it. I did it sort of as a safety device, and I don’t think the law is particularly
    clear.
    The issue clearly is defined in my mind as does a use plaintiff who otherwise
    didn’t appear until the trial and never got moved into the case until it was
    ready for verdict, are they entitled to have a verdict entered in their name? Or
    are they simply entitled to share in whatever verdict is taken in the name of the
    plaintiffs in the case.
    Common sense tells me that if you’re a use plaintiff, you shouldn’t—I
    shouldn’t have put them on the verdict sheet. But the [C]ourt of [A]ppeals
    decision—I don’t think it really clears the issue up.
    But since I put them on the verdict sheet, I’ll stick with that. And we’ll allow
    12
    the verdict to stand with respect to that and overrule motions, although I think
    honestly it is very dubious. I’m doing the best I can with what I have because
    I did it. Whatever mess we have, I created by not dealing with that up front.
    So, I’ll allow it to stand. And it will go on appeal. And it will work out itself.
    As predicted by the trial judge, WGAST noted a timely appeal. In a reported opinion,
    the Court of Special Appeals held in pertinent part that (1) the failure of the use plaintiffs to
    join the action as party plaintiffs before the expiration of the wrongful death three year
    limitations period precluded the use plaintiffs from recovering damages; and (2) the Circuit
    Court erred when it refused to instruct the jury as to apportionment of damages and when it
    excluded expert’s testimony on apportionment. Wallace & Gale Asbestos Settlement Trust
    v. Carter, 
    211 Md. App. 488
    , 
    65 A.3d 749
    (2013). This Court granted certiorari, Carter v.
    Wallace & Gale Asbestos Settlement Trust, 
    434 Md. 311
    , 
    75 A.3d 31
    (2013), to address the
    following questions:
    (1) Whether the Court of Special Appeals erred in its conclusion that the
    Circuit Court did not analyze the opinion of WGAST’s expert and erred in
    refusing to instruct the jury on apportionment of damages; and
    (2) Whether the Court of Special Appeals erred in its conclusion that the use
    plaintiffs were required to formally join the action with a formal pleading and
    are now barred by the Statute of Limitations.
    II. DISCUSSION
    In the instant matter and pertinent to the issues on appeal, the Court of Special
    Appeals held that (1) as to the Hewitt case, the trial judge erred when he rejected the
    argument of allocation of damages according to the respective harm caused by smoking and
    exposure to asbestos; and (2) as to all four consolidated cases, the trial judge also erred in
    13
    allowing substantial damage awards to 15 use plaintiffs who never joined in the action prior
    to the verdict.
    As to the first issue, the Court of Special Appeals concluded that apportionment of
    damages between several causes of an injury is appropriate in some circumstances, relying
    in large part on the Superior Court of New Jersey’s opinion in Dafler v. Raymark Industries,
    Inc., 
    611 A.2d 136
    (N.J. Super. Ct. App. Div. 1992). At issue in Dafler was whether
    damages for plaintiff’s lung cancer could be apportioned between an asbestos producer
    defendant and the cigarette smoker plaintiff. The court held that there was reasonable factual
    support for the jury’s finding that 70% of plaintiff’s lung cancer was caused by cigarette
    smoking and 30% was caused by his exposure to asbestos. 
    Dafler, 611 A.2d at 145-46
    .
    Dafler is not binding on this Court. The Court of Special Appeals acknowledged this,
    but it also did not appreciate that New Jersey law is grounded in comparative negligence
    principles (whereas Maryland law is grounded in contributory negligence principles).
    Although the Court of Special Appeals attempted to dispel this major difference in the two
    states’ tort laws by stating that the New Jersey Superior Court’s decision in Dafler was not
    based in comparative negligence principles, we disagree. The New Jersey opinion makes this
    point for us: “As we well know, apportionment is also consistent with the principles of the
    Comparative Negligence Act.” 
    Dafler, 611 A.2d at 145
    . The New Jersey appellate court
    affirmed the jury’s finding that the plaintiff was 70% at fault for his injuries (again, a finding
    firmly rooted in comparative 
    negligence). 611 A.2d at 146
    . If the jury concluded similarly
    14
    in the case before us, Hewitt would be barred from receiving any damages under Maryland’s
    contributory negligence doctrine.4
    We disagree with the Court of Special Appeals’s reliance on New Jersey case law and
    prefer to be guided by our own case law and principles previously relied upon by this state’s
    appellate courts. In a situation such as this, we shall hold that apportionment of damages is
    appropriate only where the injury is reasonably divisible and where there are two or more
    causes of the injury. We explain this conclusion in detail below.
    As to the question of whether the use plaintiffs were formally required to join in this
    case, the intermediate appellate court concluded that the use plaintiffs were not converted to
    party plaintiffs simply because they were occasionally identified as “plaintiffs,” they
    participated in pretrial depositions, and they testified at trial. 
    Carter, 211 Md. App. at 528
    ,
    65 A.3d at 773. Further, the court stated that because the use plaintiffs did not formally join
    the action by filing some type of pleading and did not timely move to join the action, all use
    plaintiffs were barred from doing so as the statute of limitations in each of the cases had
    expired. 
    Id. Based on
    the later date of either December 28, 2010, or the date when the
    complaints were amended to add wrongful death counts,5 the last dates for asserting claims
    4
    We note that WGAST did not argue that Hewitt was contributorily negligent in
    causing his death because of smoking. In fact, at oral argument Respondent’s counsel
    acknowledged that they could not argue contributory negligence under these facts.
    5
    This direction for deciding the statute of limitations date for claims against WGAST
    was prescribed by the “Second Amended and Restated Asbestos BI Claims Resolution
    Procedures” as approved by the United States Bankruptcy Court for the District of Maryland
    (continued...)
    15
    against WGAST were December 28, 2010 in the Carter and James cases, February 21, 2011
    in the Lawrence case, and July 24, 2012 in the Hewitt case. See 
    Carter, 211 Md. App. at 529-30
    , 65 A.3d at 774. The Court of Special Appeals further held that the relation back
    doctrine did not apply in this case because the use plaintiffs would be bringing new causes
    of action and would increase the overall amount of damages sought. 
    Carter, 211 Md. App. at 530
    , 65 A.3d at 774.
    Again, we disagree with the intermediate appellate court in this regard. Notably, at
    the times of the filing of the amended complaints and subsequent trial in the present case,
    Md. Rule 15-10016 did not require formal joinder7 by the designated use plaintiffs in a
    (...continued)
    in November 2010.
    6
    At the time of trial in the present case, in regard to a use plaintiff, Rule 15-1001 only
    prescribed that “[t]he words ‘to the use of’ shall precede the name of any person named as
    a plaintiff who does not join in the action,” and included a requirement that the use plaintiffs
    be notified of the action. Effective January 1, 2013, the Court of Appeals amended Rule 15-
    1001 to include a requirement that all individuals, including use plaintiffs, formally join in
    the proceeding in order to become a party. We explain this change in greater detail below
    but emphasize that this distinction is the basis of our holding here.
    7
    Joinder is “[t]he uniting of parties or claims in a single lawsuit.” Black’s Law
    Dictionary 853 (8th ed. 2004). Joinder is required in some instances to ensure that complete
    relief is given in a single action and that an absent person’s interests in the litigation are
    protected. Paul V. Niemeyer & Linda M. Schuett, Maryland Rules Commentary 140 (2003).
    The purpose behind the joinder of parties rules is “to simplify and expedite proceedings and
    to avoid the useless duplication, expense and possible uncertainty of more than one trial.”
    Allen & Wahlen, Inc. v. John C. Grimberg Co., 
    229 Md. 585
    , 588, 
    185 A.2d 337
    , 339 (1962).
    In this situation, “formal joinder” is achieved by “fil[ing] a complaint or motion to
    intervene.” Md. Rule 15-1001 (effective January 1, 2013).
    16
    wrongful death action. Absent any clear direction or requirement that formal joinder was
    necessary, on the facts of this case, the use plaintiffs’ knowing consent to the litigation
    brought on their behalf and active participation in the litigation was the functional equivalent
    of joinder. We explain our reasoning for this conclusion below and reverse the judgment of
    the Court of Special Appeals as to both issues before us.
    A. Apportionment of Damages
    Following a determination that a defendant’s conduct was a substantial factor in
    causing injury to a plaintiff,8 the fact finder must then determine an appropriate award of
    money damages. “The basic principle underlying the award of damages is that they are to
    compensate the aggrieved party.” Rosalyn B. Bell, Maryland Civil Jury Instructions and
    Commentary § 18.02 (1993) (citing Pierce v. Johns-Manville Sales Corp., 
    296 Md. 656
    , 666,
    
    464 A.2d 1020
    , 1026 (1983)). “The Maryland cases are in accord with the prevailing rule
    elsewhere: that if compensatory damages are to be recovered, they must be proved with
    8
    Restatement (Second) of Torts § 433 sets forth the important considerations for
    determining whether a specific cause is a substantial factor in producing harm to another.
    It states:
    The following considerations are in themselves or in combination with one another
    important in determining whether the actor’s conduct is a substantial factor in
    bringing about harm to another:
    (a) the number of other factors which contribute in producing the harm and the
    extent of the effect which they have in producing it;
    (b) whether the actor’s conduct has created a force or series of forces which
    are in continuous and active operation up to the time of the harm, or has
    created a situation harmless unless acted upon by other forces for which the
    actor is not responsible;
    (c) lapse of time.
    17
    reasonable certainty, and may not be based on speculation or conjecture[.]” Asibem Assoc.,
    Ltd. v. Rill, 
    264 Md. 272
    , 276, 
    286 A.2d 160
    , 162 (1972).
    A question may arise as to whether only a portion of the total damage award may
    properly be assigned to the defendant. This is the inquiry at bar. “The question is primarily
    not one of the fact of causation, but of the feasibility and practical convenience of splitting
    up the total harm into separate parts which may be attributed to each of two or more causes.”
    W. Page Keeton et al., Prosser and Keeton on Torts § 52, at 345 (5th ed. 1984). Based on
    our review of Maryland case law and its application of the Restatement (Second) of Torts,
    we conclude that apportionment of damages is appropriate only where the injury in question
    is reasonably divisible among multiple causes.9 As a matter of law, in the case at bar, the
    resulting injury is not reasonably divisible. Therefore, we reverse the judgment of the Court
    of Special Appeals.
    In 2002, the Court of Special Appeals adopted the Restatement (Second) of Torts §
    433A. Section 433A specifies the circumstances when apportionment of damages is
    appropriate. See Mayer v. N. Arundel Hosp. Assoc., 
    145 Md. App. 235
    , 249, 
    802 A.2d 483
    ,
    491 (2002). Restatement (Second) of Torts § 433A states that:
    (1) Damages for harm are to be apportioned among two or more causes where
    (a) there are distinct harms, or
    (b) there is a reasonable basis for determining the contribution of each
    9
    We note that apportioning a lump sum settlement amount among multiple plaintiffs
    is a different situation entirely and is not subject to this analysis. The current situation
    involves apportioning damages among different causes, not plaintiffs.
    18
    cause to a single harm.
    (2) Damages for any other harm cannot be apportioned among two or more
    causes.
    In other words, apportionment of damages is appropriate where the injury is divisible.
    Prosser and Keeton on Torts illustrates the difference between a divisible and indivisible
    injury:
    The distinction is one between injuries which are reasonably capable of being
    separated and injuries which are not. If two defendants, struggling for a single
    gun, succeed in shooting the plaintiff, there is no reasonable basis for dividing
    the injury between them, and each will be liable for all of it. If they shoot the
    plaintiff independently, with separate guns, and the plaintiff dies from the
    effect of both wounds, there can still be no division, for death cannot be
    divided or apportioned except by an arbitrary rule devised for that purpose. If
    they merely inflict separate wounds, and the plaintiff survives, a basis for
    division exists, because it is possible to regard the two wounds as separate
    injuries; and the same of course is true for wounds negligently inflicted. . . .
    Upon the same basis, if two defendants each pollute a stream with oil, in some
    instances it may be possible to say that each has interfered to a separate extent
    with the plaintiff’s rights in the water, and to make some division of the
    damages. It is not possible if the oil is ignited, and burns the plaintiff’s barn.
    § 52, at 345-46 (5th ed. 1984) (citations omitted).
    The concept of joint and several liability is helpful to explain further why a defendant
    should be held liable for the entirety of an injury, even when there may be multiple
    contributing causes. The analysis below is based on a concurrent tortfeasor situation, where
    a tortfeasor acts independently from–and concurrently with–other individuals to produce an
    indivisible injury to a plaintiff. See Consumer Prot. Div. v. Morgan, 
    387 Md. 125
    , 181-82,
    
    874 A.2d 919
    , 952 (2005) (explaining the difference between tortfeasors acting in concert
    and concurrent tortfeasors as they relate to joint and several liability); Morgan v. Cohen, 309
    
    19 Md. 304
    , 311-12, 
    523 A.2d 1003
    , 1006 (1986) (explaining the concept of concurrent
    tortfeasors and how they relate to the common law concept of “joint tortfeasors”). If a
    tobacco company could have been joined as a joint tortfeasor in this litigation, we could
    have had a concurrent tortfeasor scenario. In Consumer Protection Division v. Morgan, this
    Court explained:
    [T]he predicate for concurrent tortfeasors’ joint and several liability is the
    indivisibility of the injury. We have long recognized that when tortfeasors act
    independently and their acts combine to cause a single harm, the tortfeasors are
    jointly and severally liable. . . . Under the ‘single indivisible injury rule’ or
    ‘single injury rule,’ the necessary condition for concurrent tortfeasors to be
    held jointly and severally liable is that they caused a single injury incapable of
    
    apportionment. 387 Md. at 178-79
    , 874 A.2d at 950-51 (citing 
    Cohen, 309 Md. at 316
    , 523 A.2d at 1008;
    Edmonds v. Compagnie Generale Transatlantique, 
    443 U.S. 256
    , 260, 
    99 S. Ct. 2753
    , 2756,
    
    61 L. Ed. 2d 521
    , 527 (1979); Mitchell v. Gilson, 
    211 S.E.2d 744
    , 745 (Ga. 1975); Ruud v.
    Grimm, 
    110 N.W.2d 321
    , 324 (Iowa 1961); Palleschi v. Palleschi, 
    704 A.2d 383
    , 385 n.3
    (Me. 1998); D & W Jones, Inc. v. Collier, 
    372 So. 2d 288
    , 294 (Miss. 1979); Azure v. City
    of Billings, 
    596 P.2d 460
    , 469-71 (Mont. 1979); Landers v. E. Tex. Salt Water Disposal Co.,
    
    248 S.W.2d 731
    , 734 (Tex. 1952); Restatement (Second) of Torts § 879). In a Supreme
    Court of Montana opinion, cited above in Morgan, the Montana Court explained that
    “[n]ondivisibility can result either because the harm caused cannot theoretically be divided
    or because plaintiff cannot practically divide it among wrongdoers.” 
    Azure, 596 P.2d at 470
    (citing Harper & James, Law of Torts, § 10.1 701-02 (1956)). An example of a theoretically
    20
    indivisible injury would be death or the destruction of a building. 
    Id. This Court,
    in Morgan, continued:
    Rather, an independent, concurring tortfeasor is held jointly and severally
    liable because the plaintiff’s injury cannot be divided into separate portions,
    and because the tortfeasor fulfills the standard elements of tort liability, i.e., his
    or her tortious conduct was [a substantial factor in causing] the plaintiff’s
    injury. The fact that another individual also tortiously contributes to the
    plaintiff’s injury does not alter the independent, concurring tortfeasor’s
    responsibility for the entirety of the injury which he or she actually and
    proximately caused.
    
    Morgan, 387 Md. at 182
    , 874 A.2d at 952 (quoting Woods v. Cole, 
    693 N.E.2d 333
    , 336-37
    (Ill. 1998)).
    In this same vein, we look to the United States Supreme Court for guidance. In a
    maritime tort law case where the plaintiff longshoreman, the defendant shipowner, and the
    non-party stevedore were all negligent actors, the Court relied on the common law to support
    the position that “an injured party [is allowed] to sue a tortfeasor for the full amount of
    damages for an indivisible injury that the tortfeasor’s negligence was a substantial factor in
    causing, even if the concurrent negligence of others contributed to the incident.” Edmonds
    v. Compagnie Generale Transatlantique, 
    443 U.S. 256
    , 260, 
    99 S. Ct. 2753
    , 2757, 
    761 L. Ed. 2d
    521, 527 (1979). The situation in Edmonds can be analogized to the present case: plaintiff
    Hewitt added to his injury by smoking cigarettes, defendant WGAST substantially
    contributed to the harm, and an unidentified non-party cigarette company also contributed
    to Hewitt’s injury. Plaintiff Hewitt, under the common law, is allowed to sue WGAST for
    the full amount of damages for an indivisible injury that WGAST was a substantial factor in
    21
    causing, even if a cigarette company’s negligence contributed to the harm.
    To be sure, if an injury is indivisible, any tortfeasor joined in the litigation whose
    conduct was a substantial factor in causing the plaintiff’s injury would be legally responsible
    for the entirety of the plaintiff’s damages. Only if the harm is reasonably divisible is the
    issue of apportionment a question of fact for the jury or a basis for a Frye-Reed10 hearing.
    In that instance, where an injury is reasonably–or theoretically–divisible, the burden of proof
    would shift to the defendant to prove that apportionment of damages is appropriate. See
    
    Azure, 596 P.2d at 471
    (“[W]here the harm caused is theoretically divisible, plaintiff’s
    burden is to make a prima facie showing that the harm caused was at least a contributing
    proximate result of the defendant’s act or omission. The burden then shifts to the defendant
    10
    Respondents contend that the trial judge should have at least conducted a Frye-Reed
    hearing before excluding Dr. Kerby’s testimony. A Frye-Reed hearing is conducted in
    Maryland courts to determine whether expert testimony is admissible. “The name is derived
    from two cases, Frye v. United States, 
    293 F. 1013
    (D.C. Cir. 1923), where the standard of
    general acceptance in the relevant scientific community was first articulated, and Reed v.
    State, 
    283 Md. 374
    , 
    391 A.2d 364
    (1978), where we adopted the Frye standard.” Blackwell
    v. Wyeth, 
    408 Md. 575
    , 577 n.1, 
    971 A.2d 235
    , 236 n.1 (2009). “That is to say, before a
    scientific opinion will be received as evidence at trial, the basis of that opinion must be
    shown to be generally accepted as reliable within the expert’s particular scientific field.”
    
    Reed, 283 Md. at 381
    , 391 A.2d at 368. This hearing would only be appropriate if
    apportionment of damages was proper as a matter of law, which the trial judge acknowledged
    that in this instance, it was not. In other words, had Hewitt’s injury not been indivisible as
    a matter of law, i.e., had Hewitt’s ultimate injury not been death, the trial judge could have
    elected to conduct a Frye-Reed hearing based on Dr. Kerby’s testimony concerning “the
    relative contributions” of Hewitt’s cigarette smoking and asbestos exposure to the
    development of his lung cancer. We also note that during trial, it was only plaintiffs’
    counsel, not WGAST’s, that requested a Frye-Reed hearing (and only in the instance that the
    trial judge accepted Dr. Kerby’s apportionment testimony, which the trial judge did not).
    22
    to either deny all liability or to prove that the harm caused can be divided and the damages
    therefore apportioned.”)
    We therefore turn to the issue at hand: whether Hewitt’s death from lung cancer was
    an indivisible injury. First, we note that the Court of Special Appeals has held previously
    that “[a] single injury or harm may be divisible or indivisible . . . . Some injuries are
    inherently or obviously indivisible, e.g., death or, generally, a traumatic injury to a particular
    part of the body.” 
    Mayer, 145 Md. App. at 250
    , 802 A.2d at 492; see also Restatement
    (Second) of Torts § 433A cmt. i (“Certain kinds of harm, by their very nature, are normally
    incapable of any logical, reasonable, or practical division. Death is that kind of harm, since
    it is impossible, except upon a purely arbitrary basis for the purpose of accomplishing the
    result, to say that one man has caused half of it and another the rest.”); W. Page Keeton et
    al., Prosser and Keeton on Torts § 52, at 347 (5th ed. 1984) (“Certain results, by their very
    nature, are obviously incapable of any reasonable or practical division. Death is such a
    result, and so is a broken leg or any single wound, the destruction of a house by fire, or the
    sinking of a barge.”); 
    Azure, 596 P.2d at 470
    (concluding that death would make the ultimate
    harm theoretically indivisible). Although we consider these propositions to be conclusive,
    we need not rely on these statements alone to support the holding that Hewitt’s harm was
    indivisible. We look, therefore, to the nature of the harm to determine if it was actually
    indivisible, as Hewitt’s beneficiaries claim.
    Plaintiffs rely on the fact that asbestos exposure and smoking have a synergistic effect,
    23
    which makes the harm indivisible. At trial, Dr. Zimmet, an expert witness for Hewitt,
    testified as to what synergy is in this context:
    If an individual is a non-smoker and has not been exposed to asbestos, that
    person has a risk factor of getting lung cancer. There are occasional things
    that happen without either of those exposures.
    If you have lung cancer – if you are a smoker, your lung cancer risk goes way
    up. And if you are an asbestos-exposed individual, non-smoker, it goes way
    up. But if you are a smoking asbestos worker, the risk factors are not really
    additive. They are synergistic and they are multiple. And the risk factors can
    go up, some published reports, 50 to 90 times if you both smoke and have
    asbestos exposure.
    Commentators also indicate that
    asbestos and tobacco smoke are complex carcinogens that can affect multiple
    steps in the multistage process of cancer evolution, and that the combined
    effects will depend on the relative magnitude of each carcinogen at each stage.
    As reported in different studies, the interactive effect ranges from less than
    additive to supramultiplicative, but the model for insulation workers
    approximates a multiplicative effect. If the multistage model of carcinogenesis
    holds, and asbestos and smoking act at different stages, then a multiplicative
    relationship follows.
    George A. Peters & Barbara J. Peters, Asbestos Pathogenesis and Litigation, Vol. 13 of the
    Sourcebook on Asbestos Diseases: Medical, Legal, and Technical Aspects 149 (1996). What
    we take from that language is that while there are many variables that go into the causal
    effects of tobacco and asbestos exposure, there is evidence that the effect is multiplicative
    in nature, which we are satisfied is indicative of an indivisible injury.
    Based on the evidence presented at trial, there was sufficient evidence for the trial
    judge to conclude that Hewitt’s death caused by lung cancer was an indivisible injury,
    24
    incapable of apportionment. WGAST admitted that Hewitt had asbestosis, which contributed
    to his lung cancer and subsequent death. Although witnesses on both sides testified that
    Hewitt’s smoking and exposure to asbestos were both factors in causing the harm to him,
    what we are focused on here is the ultimate harmful result of WGAST’s conduct, namely,
    Hewitt’s death.    Our intermediate appellate court, courts in other states, and leading
    commentators Prosser & Keeton conclude, as we do, that death is an indivisible injury
    incapable of apportionment.11
    Last year, this Court revisited the question of whether Maryland should judicially
    abrogate the common law principle of contributory negligence in favor of the more popular
    comparative negligence doctrine. Coleman v. Soccer Ass’n of Columbia, 
    432 Md. 679
    , 
    69 A.3d 1149
    (2013). While this Court declined to do so, we find language in the dissenting
    opinion, which argues for the adoption of comparative negligence, enlightening. Writing for
    the dissent, Judge Harrell explained that “a system of comparative negligence [is one] which
    11
    Because no reasonable basis for dividing the injury between the plaintiff and the
    defendant exists, the more appropriate rule applicable to the award of damages in this case
    would be what is colloquially known as the eggshell plaintiff rule. This principle is premised
    on the notion that “[t]he fact that the plaintiff’s condition made him peculiarly susceptible
    to . . . injury . . . would not excuse the defendant from the consequences of [his] wrong.”
    Coca Cola Bottling Works, Inc. v. Catron, 
    186 Md. 156
    , 161, 
    46 A.2d 303
    , 305 (1946). “In
    other words, the fact that the injury would have been less serious if inflicted upon another
    person should not affect the amount of damages to which the plaintiff may be entitled.”
    MPJI-Cv 10:3. Here, Defendant WGAST “must accept the frailties with which the plaintiff
    [was] afflicted,” Peterson v. Goodyear Tire & Rubber Co., 
    254 Md. 137
    , 142, 
    254 A.2d 198
    ,
    201 (1969), namely, that Hewitt was a longtime cigarette smoker. The fact that Hewitt was
    more susceptible to lung cancer than a non-smoker would be does not affect the amount of
    damages he is entitled to receive from WGAST.
    25
    apportions damages between a negligent plaintiff and a negligent defendant according to
    each party’s relative degree of fault. Thus, under a comparative negligence system, a
    plaintiff’s contributory negligence does not bar recovery, but rather reduces proportionately
    his or her damages in relation to his or her degree of fault.” Coleman v. Soccer Ass’n of
    Columbia, 
    432 Md. 679
    , 699, 
    69 A.3d 1149
    , 1160-61 (2013) (Harrell, J., dissenting).
    This is precisely what WGAST is proposing we do here. Practically speaking,
    because there is no other tortfeasor joined in the case, WGAST hopes to apportion 75% to
    90% of the damages to the plaintiff on the basis of Hewitt’s smoking history and/or tobacco
    exposure. That outcome is in no way supported by Maryland law. WGAST’s intent is
    evident by the language in its proposed jury instruction, which the trial judge rejected: “If
    you decide . . . that plaintiff’s asbestos exposure and plaintiff’s smoking history and/or
    tobacco exposure were both substantial contributing factors in the development of plaintiff’s
    lung disease, then you shall apportion the damages between plaintiff’s asbestos exposure and
    the plaintiff’s smoking history/tobacco exposure.” To apportion damages to “the plaintiff’s
    smoking history/tobacco exposure,” in our view, is to apportion damages between the
    plaintiff and the defendant, which is to hold the plaintiff accountable under comparative
    negligence principles.12
    12
    This Court has rejected the comparative fault standard on numerous occasions,
    dating back to 1874. See, e.g., Coleman v. Soccer Ass’n of Columbia, 
    432 Md. 679
    , 
    69 A.3d 1149
    (2013); Harrison v. Montgomery Cty. Bd. of Educ., 
    295 Md. 442
    , 
    456 A.2d 894
    (1983);
    Pittsburg & Connellsville R.R. Co. v. Andrews, 
    39 Md. 329
    , 351, 17 Am. Rep. 568 (1874).
    26
    We further conclude that the Court of Special Appeals’s contention that its holding
    (in support of apportionment of damages) is based on causation principles, rather than
    comparative negligence, and therefore sound in Maryland law, is not persuasive. The
    intermediate appellate court stated:
    [T]he issue of apportionment concerns causation, not comparative negligence
    as appellees urge this Court to determine. Comparative fault or comparative
    negligence involves [a] determination of the relative percentages of fault
    between joint tortfeasors—i.e. in a negligence action, comparative negligence
    involves looking at the respective duties and breaches of the joint tortfeasors.
    Such a system necessarily requires that a jury consider the actions of the joint
    tortfeasors leading up to the injury to determine whether both were at fault
    and, if so, how much of the fault each joint tortfeasor should shoulder.
    Maryland has explicitly rejected adopting comparative fault or comparative
    negligence in favor of maintaining contributory negligence.
    
    Carter, 211 Md. App. at 537
    , 65 A.3d at 778-79. Stating that “[c]omparative fault or
    comparative negligence involves a determination of the relative percentages of fault between
    joint tortfeasors,” 
    id., ignores the
    most simple form of comparative negligence, “which
    apportions damages between a negligent plaintiff and a negligent defendant according to
    each party’s relative degree of fault,” 
    Coleman, 432 Md. at 699
    , 69 A.3d at 1160 (Harrell,
    J., dissenting). Comparative negligence not only allocates fault between tortfeasors, but
    allocates fault between plaintiffs and defendants, as would be the situation here. Again,
    allocation of fault between plaintiffs and defendants is contrary to this state’s longstanding
    principles of contributory negligence.
    Because Hewitt’s injury was indivisible as a matter of law and WGAST was
    attempting to attribute a portion of the damages to the plaintiff for his smoking
    27
    history/tobacco exposure, we conclude that the trial judge did not abuse his discretion by
    excluding Dr. Kerby’s testimony concerning apportionment of damages. To admit into
    evidence Dr. Kerby’s testimony with regard to apportionment of damages would have been
    inconsistent with Maryland law. We also point out that in Mayer, the intermediate appellate
    court adopted the Restatement (Second) of Torts §434, which states in pertinent part that “[i]t
    is the function of the court to determine . . . (b) whether the harm to the plaintiff is capable
    of apportionment among two or more causes; and (c) the questions of causation and
    apportionment, in any case in which the jury may not reasonably differ.” 
    See 145 Md. App. at 253-54
    , 802 A.2d at 493-94 (“The question of whether a harm is capable of apportionment
    between two or more causes is for the court if it can be decided as a matter of law. If not,
    both the question[s of] whether a harm is capable of apportionment, and if so, actual
    apportionment, are questions for the factfinder.”).
    In the present case, the trial judge carefully considered whether the harm was capable
    of apportionment prior to deciding to exclude Dr. Kerby’s testimony on the matter. During
    a lengthy discussion of the viability of the apportionment of damages issue at trial, the trial
    judge stated that it is not the law to apportion damages between smoking and asbestos
    inhalation, and later asked: “How can you possibly apportion these damages? It is a wild
    guess.” At a motions hearing following the trial, the trial judge further explained his
    reservations concerning Dr. Kerby’s testimony:
    The expert testimony is fairly implausible to start with, because they don’t
    really – they’re not actually able to, at a biological level, explain the specific
    28
    causes of specific diseases. It’s just unknowable. So they say whatever they
    say.
    ****
    I can imagine creating a giant matrix that deals with all the potential risks from
    various levels of smoking and levels of exposure. But you’re never going to
    know – you’re never going to know – it’s going to be all variables. You’re not
    ever going to know any of the numbers you have fit into the equation, because
    you can’t really tell how much the depth and level of exposure really was.
    ****
    And then you start having them divide up and apportion different levels of the
    unknowable among different parties. It’s just too much.
    Because the trial judge, through careful consideration, determined that Hewitt’s death was
    incapable of apportionment, he did not abuse his discretion in determining that, as a matter
    of law, Dr. Kerby’s testimony as it related to apportionment of damages was not admissible.
    B. Use Plaintiffs
    The second issue before this Court is whether the use plaintiffs are precluded from
    recovering damages because they did not formally join the wrongful death proceedings, and
    as a result are barred from doing so by the statute of limitations. To understand the genesis
    of the “use plaintiff” in this context, we first look to the history of the wrongful death statute.
    At the outset, “[t]he common law not only denied a tort recovery for injury once the tort
    victim had died, it also refused to recognize any new and independent cause of action in the
    victim’s dependents or heirs for their own loss at his [or her] death.” Walker v. Essex, 
    318 Md. 516
    , 522, 
    569 A.2d 645
    , 648 (1990) (quoting W. Page Keeton et al., Prosser and Keeton
    on Torts § 127, at 945 (5th ed. 1984)). In 1846, to counter this harsh rule, the English
    legislature created a cause of action for wrongful death, known as Lord Campbell’s Act,
    29
    which required a wrongful death suit to be brought by the executor or administrator of the
    estate for the use of the parties named in the complaint. 
    Walker, 318 Md. at 522-23
    , 569
    A.2d at 468. The purpose of Lord Campbell’s Act was “to compensate the families of
    persons killed by the wrongful act, neglect, or default of another person[,]” and the measure
    of damages was based on the loss sustained by the parties on whose behalf the action was
    brought. Stewart v. United Elec. Light & Power Co., 
    104 Md. 332
    , 343, 
    65 A. 49
    , 53 (1906).
    Subsequently, every American state adopted its own wrongful death statute, with many states
    requiring the suit to be brought by the executor, administrator, or personal representative of
    the deceased person’s estate. 
    Walker, 318 Md. at 522-23
    , 569 A.2d at 648.
    In 1852, Maryland adopted its wrongful death statute that had a close resemblance to
    Lord Campbell’s Act. 
    Id. Today, the
    key difference between the English statute and
    Maryland’s Wrongful Death Act is that under the Maryland statute, “suit is brought in the
    name of a person entitled to recover, and to the use of all such parties who may have an
    interest.” 
    Walker, 318 Md. at 523
    , 569 A.2d at 648; see Robinson v. Lewis, 
    20 Md. App. 710
    , 714, 
    317 A.2d 854
    , 857 (1974) (explaining that wrongful death suits arising within the
    state must now be filed in the name of the real parties in interest, rather than in the name of
    the State). We note that unlike most other states, Maryland has two independent causes of
    action for the beneficiaries of a tort victim to bring following the victim’s death: a survival
    action and a wrongful death action. The former is in the name of the personal representative
    for any claim the deceased person could have maintained during his or her lifetime and the
    30
    latter claim is brought on behalf of the surviving heirs or beneficiaries for their loss resulting
    from the death of a spouse, parent or child. 
    Walker, 318 Md. at 523
    , 569 A.2d at 648. It
    follows then, based on the history of the wrongful death cause of action, that a beneficiary
    (or a personal representative with an interest) would bring the suit for the use of the other
    parties in interest.
    Md. Code (1973, 2006 Repl. Vol.), § 3-904 of the Courts and Judicial Proceedings
    Article (hereinafter § 3-904) and Md. Rule 15-1001 govern the proper procedures for a
    wrongful death action. Section 3-904 provides, in pertinent part:
    (a) Primary beneficiaries.
    (1) Except as provided in paragraphs (2) and (3) of this subsection, an
    action under this subtitle shall be for the benefit of the wife, husband,
    parent, and child of the deceased person.
    ****
    (b) Secondary beneficiaries. If there are no persons who qualify under
    subsection (a), an action shall be for the benefit of any person related to the
    deceased person by blood or marriage who was substantially dependent upon
    the deceased.
    (c) Damages to be divided among beneficiaries.
    (1) In an action under this subtitle, damages may be awarded to the
    beneficiaries proportioned to the injury resulting from the wrongful
    death.
    (2) Subject to § 11-108(d)(2) of this article, the amount recovered shall
    be divided among the beneficiaries in shares directed by the verdict.
    ****
    (f) Restriction to one action under this subtitle. Only one action under this
    subtitle lies in respect to the death of a person.
    (g) Action to commence within three years; deaths caused by occupational
    disease.
    31
    (1) Except as provided in paragraph (2) or (3) of this subsection, an
    action under this subtitle shall be filed within three years after the death
    of the injured person.
    (2)(i) In this paragraph, “occupational disease” means a disease caused
    by exposure to any toxic substance in the person’s workplace and
    contracted by a person in the course of the person’s employment.
    (ii) If an occupational disease was a cause of a person’s death, an
    action shall be filed:
    1. Within 10 years of the time of death; or
    2. Within 3 years of the date when the cause of death was
    discovered, whichever is the shorter.
    We point out that section (f), known as the “one action rule,” codifies one of the main
    policies underlying wrongful death statutes. This Court has explained that “the purpose of
    the one action rule is to protect a defendant from being vexed by several suits instituted by
    or on behalf of different equitable plaintiffs for the same injury, when all the parties could
    be joined in one proceeding.” 
    Walker, 318 Md. at 523
    , 569 A.2d at 648. Moreover, § 3-
    904(c) requires that “if a recovery or verdict is obtained in this one action, the amount
    recovered shall be divided among the beneficiaries in shares directed by the verdict.” 
    Id. The statute
    does not allow for claims to be severed, and “[a] judgment should not [be]
    entered in the circuit court unless it included the interests of all the known beneficiaries.”
    
    Walker, 318 Md. at 524
    , 569 A.2d at 648.
    In an attempt to decipher the state of the law regarding joinder of use plaintiffs at the
    time of the present trial, we discovered that the case law interpreting Md. Rule 15-1001
    (governing the procedures for a wrongful death action) to be less than clear. To thoroughly
    explain our holding here, we must explain how this Rule has evolved, starting before the
    32
    commencement of this action, and ending with the 2013 amendment to the Rule. This
    Court’s recent opinion in University of Maryland Medical System Corp. v. Muti, 
    426 Md. 358
    , 
    44 A.3d 380
    (2012), is the catalyst of this evolution. We therefore proceed by first
    explaining the law prior to Muti. We next explain the clarification and affirmative mandate
    imposed by the decision in Muti, and finally, we explain the 2012 amendments to Rule 15-
    1001, which were drafted in accordance with and as further clarification of Muti.
    Prior to, and for the duration of the trial in the instant case, Md. Rule 15-1001 stated:
    (a) Applicability. This Rule applies to an action involving a claim for damages
    for wrongful death.
    (b) Plaintiff. If the wrongful act occurred in this State, all persons who are or
    may be entitled by law to damages by reason of the wrongful death shall be
    named as plaintiffs whether or not they join in the action. The words “to the
    use of” shall precede the name of any person named as a plaintiff who does not
    join in the action.
    (c) Notice to Use Plaintiffs. The party bringing the action shall mail a copy of
    the complaint by certified mail to any use plaintiff at the use plaintiff’s last
    known address. Proof of mailing shall be filed as provided in Rule 2-126.
    (d) Complaint. In addition to complying with Rules 2-303 through 2-305, the
    complaint shall state the relationship of each plaintiff to the decedent whose
    death is alleged to have been caused by the wrongful act.
    The conclusions drawn from the case law interpreting Rule 15-1001 (prior to Muti)
    can be summarized in two general propositions: (1) Maryland Rule 15-1001(b) did not
    require formal joinder; and (2) Maryland Rule 15-1001 was more than just a notice rule
    because use plaintiffs are real parties in interest whose interests must be acknowledged and
    protected throughout the litigation. Ace American Ins. Co. v. Williams, 
    418 Md. 400
    , 422,
    33
    424, 
    15 A.3d 761
    , 774-75 (2011); Williams v. Work, 
    192 Md. App. 438
    , 455, 
    995 A.2d 744
    ,
    755 (2010). In 2010, prior to the conclusion of trial in the present case, the Court of Special
    Appeals in Work concluded that:
    Maryland law . . . makes clear that all beneficiaries in wrongful death lawsuits
    are the real parties in interest in these suits. Indeed, if one of a decedent’s
    beneficiaries is absent from a wrongful death lawsuit, Maryland law requires
    that a judgment rendered in favor of the beneficiary or beneficiaries who did
    prosecute the suit be vacated.
    ****
    Although Rule 15-1001(b) does not require the statutory beneficiaries to
    formally join the litigation, all persons who are or may be entitled by law to
    damages by reason of the wrongful death shall be named as plaintiffs. The
    words “to the use of” simply identify plaintiffs who have not formally joined
    the action, but, as real parties in interest, they are plaintiffs whose interests
    must be acknowledged and protected throughout the litigation.
    Although Rule 15-1001(b) does not require formal joinder, the failure to
    include a known statutory beneficiary as a plaintiff or a “use plaintiff” in a
    wrongful death action and to settle without providing for that beneficiary can
    be analogized to the failure to join a necessary party in an action where joinder
    is 
    required. 192 Md. App. at 454-55
    , 995 A.2d at 754-55 (emphasis added) (quotations and citations
    omitted).
    In addition, one of the respondents in Work argued that Rule 15-1001 is simply a
    notice rule, and so long as use plaintiffs are properly designated as such in the complaint, the
    Rule is satisfied when the party plaintiffs’ attorneys give the use plaintiffs notice of the
    
    action. 192 Md. App. at 460
    , 995 A.2d at 758. The court in Work explained that if it were
    to follow the theory that Rule 15-1001 was only a notice rule, once the use plaintiffs were
    34
    notified of the complaint, the burden would then fall upon them to join or intervene in the
    wrongful death action in order to protect their interests. 
    Id. In explicitly
    rejecting this
    theory, the court in Work stated:
    To interpret the Rule as simply a notice rule disregards: (1) the representative
    nature of wrongful death actions; (2) the language of Rule 15-1001(b),
    requiring that all persons who are or may be entitled by law to damages by
    reason of the wrongful death shall be named as plaintiffs whether or not they
    join in the action; and (3) the provisions of Cts. & Jud. Proc. § 3-904(c)
    relating to the award of damages to the statutory beneficiaries proportional to
    injury resulting from the wrongful death.
    
    Id. (quotations omitted).
    It can be inferred from this excerpt that plaintiffs’ attorneys must
    have, to some as yet undefined extent, presumably acted on behalf of and represented the
    interests of those statutory beneficiaries entitled to damages, and that the burden to intervene
    did not fall on the use plaintiffs.13
    The following year, on March 21, 2011, this Court adopted the Court of Special
    Appeals’s express interpretation of Rule 15-1001. See 
    Ace, 418 Md. at 427
    , 15 A.3d at 777
    (“We agree with the COSA’s interpretation of Md. Rule 15–1001(b), which is entirely
    consistent with our holding in Walker v. 
    Essex, supra
    , as well as with the provisions of CJ
    13
    The Work opinion involved an attempt by the circuit court to approve the settlement
    of a wrongful death case where the use plaintiffs were not properly designated. The original
    settlement agreement made no mention of the decedent’s two sons from a previous marriage.
    The Court of Special Appeals made clear that court approval of the wrongful death
    settlement can occur only when there has been some effort to achieve the consent of all
    known beneficiaries.
    35
    § 3–904.”).14 Therefore, for the duration of the trial in the present case, this Court’s and the
    Court of Special Appeals’s interpretation of Rule 15-1001 was the only relevant instruction
    to use plaintiffs concerning the proper procedure to join in an action for damages alleging
    wrongful death.
    The first affirmative directive to use plaintiffs explaining how to join in a wrongful
    death action occurred in this Court’s 2012 opinion in Muti. In that case, this Court undertook
    the task of clarifying the case law on use plaintiffs. In a section entitled “Some Considered
    Dicta,” the majority opinion explained the standard for a named use plaintiff to join in the
    wrongful death action when it stated:
    Rule 15-1001(b) distinguishes between those beneficiaries who join in the
    action for damages and those, the use plaintiffs, who do not. Use plaintiffs
    who wish to assert their respective claims for damages must timely join the
    action by indicating to the court and to the original parties in some clear
    fashion that they are claiming their “share.” Ordinarily, this is done by
    intervening.
    
    Muti, 426 Md. at 384
    , 44 A.3d at 395. See Schmidt v. Prince George’s Hosp., 
    366 Md. 535
    ,
    551, 
    784 A.2d 1112
    , 1121 (2001) (“When a question of law is raised properly by the issues
    in a case and the Court supplies a deliberate expression of its opinion upon that question,
    such opinion is not to be regarded as obiter dictum, although the final judgment in the case
    may be rooted in another point also raised by the record.”).
    As stated previously, this “considered dicta” in Muti is the first affirmative, clear
    14
    This Court’s opinion in Ace was filed three weeks after the verdicts were rendered
    in the present case, but prior to the post-trial motions hearings.
    36
    attempt to delineate what is required of use plaintiffs to formally join a wrongful death
    action. From Muti, we conclude that use plaintiffs who wish to assert their claim for
    damages in a wrongful death action must, in a “clear fashion,” indicate to the court and the
    original parties “that they are claiming their share.” This statement is followed by the
    proposition that “[o]rdinarily, this is done by intervening.” We read this statement to mean
    that the Court left open for interpretation the precise manner by which a use plaintiff could
    clearly claim his or her share, but the typical manner is by filing a motion to intervene.
    The Rules Committee closed that door with its 2012 recommendation to amend Rule
    15-1001 “to implement holdings of the Court in [Muti.]” Court of Appeals Standing
    Committee on Rules of Practice and Procedure, Meeting Minutes of June 21, 2012, at 105.
    The new version of Md. Rule 15-1001, which was amended in October 2012, and adopted
    by this Court, effective January 1, 2013, substantially incorporated the old iteration of
    sections (a) and (b). The new amendments to the Rule state:
    (c) Complaint. The complaint shall state (1) the relationship of each plaintiff
    to the decedent whose death is alleged to have been caused by the wrongful
    act, (2) the last known address of each use plaintiff, and (3) that the party
    bringing the action conducted a good faith and reasonably diligent effort to
    identify, locate, and name as use plaintiffs all individuals who might qualify
    as use plaintiffs. The court may not dismiss a complaint for failure to join all
    use plaintiffs if the court finds that the party bringing the action made such a
    good faith and reasonably diligent effort.
    (d) Notice to use plaintiff. The party bringing the action shall serve a copy of
    the complaint on each use plaintiff pursuant to Rule 2-121. The complaint
    shall be accompanied by a notice in substantially the following form:
    [Caption of case]
    37
    NOTICE TO                                           [Name of Use Plaintiff]
    You may have a right under Maryland law to claim an award of damages in
    this action. You should consult Maryland Code, § 3-904 of the Courts Article
    for eligibility requirements. Only one action on behalf of all individuals
    entitled to make a claim is permitted. If you decide to make a claim, you must
    file with the clerk of the court in which this action is pending a motion to
    intervene in the action in accordance with the Maryland Rules no later than
    the earlier of (1) the applicable deadline stated in § 3-904 (g) and § 5-201 (a)
    of the Courts Article [“the statutory deadline”] or (2) 30 days after being
    served with the complaint and this Notice if you reside in Maryland, 60 days
    after being served if you reside elsewhere in the United States, or 90 days after
    being served if you reside outside of the United States [“the served notice
    deadline”]. You may represent yourself, or you may obtain an attorney to
    represent you. If the court does not receive your written motion to intervene
    by the earlier of the applicable deadlines, the court may find that you have lost
    your right to participate in the action and claim any recovery.
    (e) Waiver by inaction.
    (1) Definitions. In this section and in section (f) of this Rule, “statutory
    deadline” means the applicable deadline stated in Code, Courts Article,
    § 3-904 (g) and § 5-201 (a), and “served notice deadline” means the
    additional applicable deadline stated in the notice given pursuant to
    section (d) of this Rule.
    (2) Failure to satisfy statutory time requirements. An individual who
    fails to file a complaint or motion to intervene by the statutory deadline
    may not participate in the action or claim a recovery.
    (3) Other late filing. If a use plaintiff who is served with a complaint
    and notice in accordance with section (d) of this Rule does not file a
    motion to intervene by the served notice deadline, the use plaintiff may
    not participate in the action or claim any recovery unless, for good
    cause shown, the court excuses the late filing. The court may not excuse
    the late filing if the statutory deadline is not met.
    (f) Subsequently identified use plaintiff. Notwithstanding any time limitations
    contained in Rule 2-341 or in a scheduling order entered pursuant to Rule
    2-504, if, despite conducting a good faith and reasonably diligent effort to
    identify, locate, and name all use plaintiffs, an individual entitled to be named
    as a use plaintiff is not identified until after the complaint is filed, but is
    identified by the statutory deadline, the newly identified use plaintiff shall be
    added by amendment to the complaint as soon as practicable and served in
    38
    accordance with section (d) of this Rule and Rule 2-341 (d). (Emphasis
    added.)
    As the new language of the Rule makes quite plain, a use plaintiff is now required to file a
    motion to intervene in order to be joined as a party plaintiff in a wrongful death action.
    Therefore, the amendments to Rule 15-1001 effectively abrogate all prior case law holding
    that formal joinder is not required under Rule 15-1001.
    With the evolution of Rule 15-1001 in mind, we return to the issue at bar: whether the
    use plaintiffs in the instant case did enough to join in the action under the state of the law at
    the time of the filing of the amended complaints and through the duration of the trial, in order
    to maintain a claim for damages. If the use plaintiffs did not do enough to join in the
    litigation prior to the expiration of the three year statute of limitations, they would be barred
    from recovery. To summarize, the case law in existence at the time of trial interpreting § 3-
    904 and Rule 15-1001, which govern wrongful death suits, dictates four general propositions:
    (1) “the purpose of the one action rule [in § 3-904(f)] is to protect a defendant from being
    vexed by several suits instituted by or on behalf of different equitable plaintiffs for the same
    injury, when all the parties could be joined in one proceeding;” (2) if a verdict is obtained in
    this single proceeding, it shall be divided among all of those beneficiaries who have an
    interest; see 
    Walker, 318 Md. at 523
    , 569 A.2d at 648; (3) Maryland Rule 15-1001(b) did not
    require formal joinder; and (4) Maryland Rule 15-1001 is more than just a notice rule
    because use plaintiffs are real parties in interest whose interests must be acknowledged and
    protected throughout the litigation, see 
    Work, 192 Md. App. at 454-55
    , 
    460, 995 A.2d at 755
    ,
    39
    758.
    Under the state of the law at the time of trial here, which was prior to this Court’s
    decision in Muti and before the latest revisions to Rule 15-1001, the use plaintiffs were real
    parties in interest that were not required to formally join in the proceeding in order to share
    in an award for damages. Absent any clear direction or requirement that formal joinder was
    necessary, on the facts of this case, the use plaintiffs’ knowing consent to and active
    participation in the litigation was the functional equivalent of joinder. Moreover, when
    “Rule 15-1001(b) does not require formal joinder,” we see no plausible way for a named use
    plaintiff’s “interests [to] be acknowledged and protected throughout the litigation” other than
    to include them in the process towards judgment. See 
    Work, 192 Md. App. at 455
    , 995 A.2d
    at 755. Indeed, the use plaintiffs’ non-joinder was not fatal to their claim for damages
    because they were beneficiaries with a cognizable interest in the litigation. See Johnson v.
    Price, 
    191 F. Supp. 2d 626
    , 629 (D. Md. 2001) (holding that the use plaintiff had “a real,
    legally cognizable interest” and her rights “must be adjudicated as part of the wrongful death
    suit brought by her mother”). There would need to have been some other applicable law 15
    15
    We reviewed the Maryland Rules governing parties, including Rule 2-201 (Real
    Parties in Interest), Rule 2-211 (Required Joinder of Parties), and Rule 2-212 (Permissive
    Joinder of Parties). Although Rule 2-211 and 2-212 explain when and why joinder is
    required or permissive in some situations, these rules do not give direction as to how a party
    is to actually join a lawsuit. In Rule 2-201, the only direction to use plaintiffs is in regard to
    a situation where the action is brought in the name of someone without an interest, and calls
    for an “objection for joinder or substitution of the real party in interest.” In contrast, the
    action here was brought in the name of real parties in interest, so objection for joinder would
    not be appropriate. Additionally, there is no directive as to how to “substitute” the real parties
    (continued...)
    40
    specifically requiring the use plaintiffs to take affirmative steps to join in the action; it
    appears, however, that use plaintiffs could essentially obtain a “free ride”16 under the state
    of the law at the time of the trial in the present case. This Court in Muti recognized this
    problem and clarified the need for the use plaintiff to affirmatively join the case.
    We find this situation analogous to the facts in Hayden v. Wesner, 
    52 Md. App. 323
    ,
    
    449 A.2d 436
    (1982). In that case, a complaint for damages was filed, designating the
    plaintiffs as “State of Maryland for the Benefit of Rose Elizabeth Wesner and Rose Elizabeth
    Wesner, Personal Representative of Edward Lee Morgan.” 
    Hayden, 52 Md. App. at 324
    , 449
    A.2d at 436.    Rose Wesner, the mother of the decedent, never formally joined the
    proceedings. After the jury returned a verdict in Mrs. Wesner’s favor, the defendant-
    appellant thereafter objected for want of necessary parties. 
    Hayden, 52 Md. App. at 324
    -25,
    449 A.2d at 436-37. The intermediate appellate court held that “there was no lack of
    necessary parties. Mrs. Wesner, the mother of the slain child, was the party plaintiff, albeit
    (...continued)
    in interest under Rule 2-201, and therefore, we find no rule requiring use plaintiffs to take
    specific affirmative steps to join in this case.
    16
    Indeed, this exact problem was highlighted in an article authored in 2008
    concerning ethical obligations revolving around use plaintiffs in Maryland wrongful death
    cases. The author opined about the “troublesome” nature of a “free ride use plaintiff who
    does not hire an attorney, who refuses to contribute to costs, who refuses to agree to share
    the responsibility for attorney’s fees, and who [thereafter] insists on participating in the
    settlement or judgment[.]” Robert R. Michael, The “Use” Plaintiff in Maryland Wrongful
    Death Cases: Some Ethical Observations, Trial Reporter 13 (Fall 2008). We believe that this
    problem was one of the considerations when the Rules Committee recommended amending
    Rule 15-1001 in 2012 to require formal joinder in such actions, and has since been remedied.
    41
    a misdesignated one. Naming her as a ‘use plaintiff’ instead of bringing the action in her
    own name amounts to no more than an error in styling rather than one of substance.”
    
    Hayden, 52 Md. App. at 326
    , 449 A.2d at 437. The court further elaborated that “[i]t was
    obvious to [the trial judge], the jury, and the appellant that the real party plaintiff was the
    appellee, Mrs. Wesner, and the appellant acknowledges that he was not harmed, surprised,
    or placed at a disadvantage by the mislabeling of the declaration.” 
    Id. Rather, the
    defendant-
    appellant knew of his right to object to the failure to join Mrs. Wesner throughout the course
    of the trial, “but was content to lie in wait and then play ‘his ace in the hole’ if the verdict
    was in favor of Mrs. Wesner or was in an amount greater than the appellant deemed proper.”
    
    Hayden, 52 Md. App. at 325
    , 449 A.2d at 437.
    This conclusion in Hayden is one dictated by fairness and is also a conclusion
    applicable to the case at bar: it was obvious to everyone involved in the case that the use
    plaintiffs were parties to the litigation, and in addition, WGAST was not surprised or
    disadvantaged because the use plaintiffs here did not formally join in the proceedings.
    Petitioners pointed to a number of facts that support these propositions: all use plaintiffs were
    identified in discovery, they were listed as “plaintiffs” in the proposed voir dire, most of them
    were deposed at the same time as the four party plaintiffs, they were introduced to the jury,
    all but three testified at trial and were subjected to cross-examination, and each of the use
    plaintiffs was listed on the verdict sheet and obtained individual awards resulting in money
    judgments.
    42
    We also point out that, although occurring inconsistently, the use plaintiffs were listed
    as plaintiffs in several of the filings, including a Motion By Interlineation to add W&G as
    a party defendant and in a notice of deposition. At oral argument in this Court, Petitioners’
    counsel asserted that all 19 plaintiffs were represented by the same law firm from at least as
    far back as when the cases were consolidated for trial in 2009. In response to a question in
    open court from a member of this Court concerning who was representing the use plaintiffs
    and whether written fee agreements were “all done in this case,” Petitioners’ counsel asserted
    that “that is all done and we represented them the entire time at trial.” Additionally, all
    twelve of the use plaintiffs that testified at trial were asked questions in order to establish
    their past relationship and familial bond with the deceased person and how the loss of the
    decedent affected them.17     Section 3-904(d) permits recovery of damages for “mental
    17
    For example, when plaintiffs’ counsel questioned use plaintiff Rufus Carter, Jr., he
    asked Rufus Carter Jr. questions such as:
    And can you describe for us your relationship with your father while you were
    growing up?
    What types of activities do you remember doing with your father growing up?
    How did that news [that your father had lung cancer] affect you?
    How often after your father’s diagnosis would you see him?
    How, if at all, did your father influence your life?
    We cannot imagine a reason for asking these questions other than to establish that the use
    plaintiff had a claim under the Wrongful Death Statute. All of the use plaintiffs that testified
    were asked similar questions.
    43
    anguish, emotional pain and suffering, loss of society, companionship, comfort, protection,
    marital care, parental care, filial care, attention, advice, counsel, training, guidance, or
    education[.]” Testimony in this regard would be irrelevant unless the use plaintiffs indeed
    were pursuing a claim for damages. Neither the trial judge nor defense counsel objected to
    such lines of questioning. Finally, at a post-trial motions hearing conducted for the sole
    purpose of deciding the status of the use plaintiffs,18 the trial judge decided that “there is no
    question that use plaintiffs have to be included. They’re supposed to be included. They’re
    necessary parties.” It can reasonably be inferred from this and previous statements by the
    trial judge that had he been alerted earlier to the fact that the use plaintiffs were never
    formally joined, he would have joined them as party plaintiffs at the outset.
    Respondent’s retort is that the use plaintiffs do not appear on the docket sheets (except
    as judgment recipients), counsel never entered appearances on their behalf, and no motions
    were ever filed to join them in the case. Respondent argues that the use plaintiffs’ supposed
    “participation” in the proceedings does not qualify them as party plaintiffs with a right to
    recover damages. We disagree. It is obvious that everyone involved, including Respondent’s
    counsel, considered the use plaintiffs to be parties to the litigation. It is particularly telling
    that Respondent’s counsel did not object to the line of questioning employed by plaintiffs’
    counsel that established the use plaintiffs’ claims for damages. Moreover, Respondents make
    18
    See section 
    I.B., supra
    , for more details about this post-trial motions hearing. The
    substance of the hearing concerned whether the trial judge’s earlier decision to include the
    use plaintiffs on the verdict sheet was proper.
    44
    no assertion of genuine surprise or genuine harm to them. We therefore hold that in this case,
    where use plaintiffs were named in the complaint and participated in the litigation, where it
    was obvious to everyone involved that they were parties claiming damages, and where
    WGAST was not genuinely disadvantaged by their addition to the action, the use plaintiffs
    were real parties in interest who were entitled to an award for damages. Prior to the
    expiration of the statute of limitations, the use plaintiffs had already effectively joined in the
    case. This is demonstrated by the fact that, prior to December 28, 2010, the earliest of the
    statute of limitations dates, all use plaintiffs were named in the amended complaints, were
    represented by counsel, and were listed in the proposed voir dire.
    If we were evaluating the facts of this case under the state of the law following the
    filing of our opinion in Muti, but before the new amendments to Rule 15-1001 became
    effective, our inquiry would be whether the use plaintiffs did enough to indicate to the court
    and original parties in some clear fashion that they were claiming their share.19 See 
    Muti, 426 Md. at 384
    , 44 A.3d at 395. Because formal joinder was not required at that time, and
    because it was undisputed that the use plaintiffs did not formally join in the proceedings, we
    would turn to the facts as 
    explained supra
    to analyze the use plaintiffs’ actions under this
    standard. We would hold that where the use plaintiffs were known to all of the parties and
    19
    If a trial involving a wrongful death cause of action occurred on or after May 3,
    2012 (the filing date of Muti) and prior to January 1, 2013 (the effective date of the new
    amendments to 15-1001), this would be the standard under which appellate courts would
    evaluate whether the use plaintiffs properly joined in the action.
    45
    where they extensively participated in the litigation, they clearly and sufficiently indicated
    to the court that they were claiming their share. The trial judge says as much when he stated
    that the use plaintiffs were “supposed to be included,” indicating that he was under the
    assumption that they had been or should have been parties throughout the course of the
    litigation.
    We would further emphasize that the assertion in Muti that joinder is ordinarily
    accomplished by intervention does not mean it is the only method, but is the recommended
    one in order to avoid confusion and ambiguity. Where, as here, the designated use plaintiffs
    fully participated in the proceedings, both the trial judge and the use plaintiffs were
    undoubtedly under the assumption that they had properly joined the action. It appears as
    though the only party not operating under this assumption was WGAST, who belatedly
    pointed out the problem to the court following the presentation of the plaintiffs’ case in chief.
    Finally, we point out that if we were evaluating the facts of this case under the state
    of the law following the 2012 amendments to Rule 15-1001 (effective January 1, 2013), our
    inquiry would be whether the use plaintiffs “file[d] a complaint or motion to intervene by the
    statutory deadline.” Rule 15-1001(e)(2). This would be a very brief inquiry because it is
    clear by all accounts that the use plaintiffs did not ever formally join in the present action.
    Therefore, if the trial in the case at bar took place on or after January 1, 2013, the use
    plaintiffs would all be barred from recovery because the statute of limitations would have run
    long before any formal joinder occurred. That not being the case, however, we shall hold
    46
    that the use plaintiffs, as real parties in interest, and as designated in the complaint filed with
    the court, were part of the action for purposes of the trial resulting in jury verdicts and money
    judgments entered in their favor.20
    JUDGMENT OF THE COURT OF
    SPECIAL APPEALS REVERSED.
    C A SE R EM ANDED TO T H A T
    COURT WITH DIRECTIONS TO
    AFFIRM THE JUDGMENT OF THE
    CIRCUIT COURT FOR BALTIMORE
    CITY.   RESPONDENT TO PAY
    COSTS.
    20
    Because we hold that the use plaintiffs are not precluded from claims for damages,
    we do not reach the question of whether the relation back doctrine is applicable here.
    47
    Circuit Court for Baltimore City
    Case No.: 24-X-09-000419
    Argued date: May 5, 2014
    IN THE COURT OF APPEALS
    OF MARYLAND
    No. 84
    September Term, 2013
    SONIA CARTER, et al.
    v.
    THE WALLACE & GALE ASBESTOS
    SETTLEMENT TRUST
    Barbera, C.J.,
    Harrell,
    Battaglia,
    Greene,
    McDonald,
    Rodowsky, Lawrence F. (Retired, Specially
    Assigned),
    Raker, Irma S. (Retired, Specially
    Assigned),
    JJ.
    Concurring and Dissenting Opinion by Raker, J.,
    which Battaglia, J., joins.
    Filed: July 21, 2014
    I disagree with the analysis of the majority as to the apportionment issue in the Hewitt
    case and thus, dissent from that portion of the majority opinion. I join the majority opinion
    in all other respects. For the reasons explained below, pursuant to Maryland Rule 8-604(d),
    I would remand the Hewitt case to the circuit court for a Frye-Reed hearing to determine
    whether the defense expert’s theory that Hewitt’s injury is capable of apportionment is
    generally accepted in the scientific community.
    I believe that the Court of Special Appeals, Judge Shirley Watts writing for the Court,
    got it right in its analysis that apportionment concerns causation, not comparative negligence
    principles. I disagree with the majority’s holding that in all cases, death is an indivisible
    injury as a matter of law and hence, not suitable for apportionment.
    Death may be indivisible as to result, but it is not per se incapable of apportionment.
    Many courts around the country have permitted apportionment in death cases. See e.g.,
    Brisboy v. Fibreboard Corp., 
    429 Mich. 540
    , 
    418 N.W.2d 650
    , 655 (1988) (permitting
    apportionment of damages in a wrongful death action based on smoking history and asbestos
    exposure); Champagne v. Raybestos-Manhattan, Inc., 
    212 Conn. 509
    , 
    562 A.2d 1100
    , 1118
    (1989) (same); see also Poliseno v. General Motors Corp., 
    328 N.J. Super. 41
    , 
    744 A.2d 679
    ,
    687 (2000) (concluding that while death is indivisible as to result, it is capable of
    apportionment in terms of causation). In Maryland, the State Workers’ Compensation
    Commission is compelled statutorily to apportion damages in workers’ compensation cases
    involving a deceased employee. See Maryland Code (1991, 2008 Repl. Vol.) § 9-608 (noting
    that the “Commission shall determine the percentage that an occupational disease contributed
    to the death or disability of a covered employee . . . .”). (emphasis added). In my view, a
    categorical rule that death is an indivisible injury incapable of apportionment speeds past an
    accepted principle of law: death can be capable of apportionment as to damages, but not as
    to fault. See Restatement (Third) of Torts: Physical and Emotional Harm § 28, cmt. d (2010)
    (“Death as an injury may not be divisible, but damages for death are divisible.”); see also
    Gerald W. Boston, Toxic Apportionment: A Causation and Risk Contribution Model, 25
    Envtl. L. 549, 568-69 (1995) (stating that although “comment i [to the Restatement (Second)
    of Torts §443A] states that death is the quintessential indivisible harm . . . deaths attributable
    to toxic causes, as when a plaintiff dies from lung cancer brought about by the combined
    effects of smoking and asbestos exposure, each of the contributing causes can be compared
    and the harm apportioned on that basis.”).
    In addition to the notion that death has been held to be an indivisible injury, the
    majority relies improperly on the one-sided evidence presented at trial to support its
    conclusion. The trial court, however, failed to consider the defendant’s evidence on the issue
    of apportionment and relied solely on the plaintiff’s experts, and the trial judge’s own
    understanding, to support its ruling rejecting apportionment. Dr. Kerby, defendant’s expert,
    was prepared to testify to the risk assessment involved with the causes at issue: smoking and
    exposure to asbestos. Dr. Kerby’s proffer indicates that he would have testified that “the
    relative risks for each [history of smoking and exposure to asbestos] to the development of
    [the plaintiff’s] lung cancer and death therefrom is 3 to 1, cigarette smoking to asbestos.”
    2
    Further, he would have opined that the relative contribution of Hewitt’s tobacco use and of
    his exposure to asbestos to the development of his lung cancer was 75% and 25%. The
    expert’s testimony could have formed the basis for a reasonable basis of apportioning
    damages. See 
    Boston, supra, at 555
    (concluding that “[i]f the plaintiff’s asbestos exposure
    and his smoking are both shown to be causal factors in the plaintiff’s lung cancer, then the
    loss is necessarily capable of apportionment on the basis of the relative risks demonstrated
    for each kind of toxic exposure.”). I would, instead, remand the case so that a Frye-Reed
    hearing would be held to determine if the opinion offered by Dr. Kerby met the standards for
    scientific testimony before it was accepted or rejected. See Blackwell v. Wyeth, 
    408 Md. 575
    ,
    588, 
    971 A.2d 235
    , 243 (2009); see also Mayer v. North Arundel Hosp. Ass’n, Inc., 145 Md.
    App. 235, 254 n. 7, 
    802 A.2d 483
    (2002) (noting that the initial burden is on the plaintiff to
    establish that a harm is indivisible and that “[a] defendant is free to put on evidence” to the
    contrary). Doing so, would have permitted the court to make an informed decision as to
    whether there was a reasonable basis for apportioning the injury. The majority’s per se rule
    prevents a trial court from evaluating the merit of emerging scientific theories of causation.
    Moreover, the question of apportionment, a process although sounding in comparative
    negligence, is a different animal. See 
    Mayer, 145 Md. App. at 249
    , 802 A.2d at 491 (noting
    that in the context of apportionment of damages “we are talking about causal, not fault,
    apportionment”); 
    Poliseno, 328 N.J. Super. at 55-56
    , 744 A.2d at 687-88 (explaining the
    distinction between apportionment based on causation principles and fault); 
    Boston, supra
    ,
    3
    at 580-85) (discussing the shortcomings of utilizing comparative fault principles as a
    justification for apportionment of damages); see also 
    Mayer, 145 Md. App. at 249
    , 802 A.2d
    at 491 (noting that because the plaintiff had an injury prior to the negligent act committed by
    the defendant, “the question becomes one of apportionment of damages”); Maryland Civil
    Pattern Jury Instructions 10:4 (“A person who had a particular condition before the accident
    may be awarded damages for the aggravation or worsening of that condition.”). Judge Watts,
    writing for the Court of Special Appeals, set out a well-reasoned analysis as to why
    apportionment can be appropriate notwithstanding this Court’s allegiance to contributory
    negligence. I quote the opinion addressing this issue, in relevant part, as follows:
    “We begin by stating that the issue of apportionment concerns
    causation, not comparative negligence as appellees urge this
    Court to determine.        Comparative fault or comparative
    negligence involves determination of the relative percentages of
    fault between joint tortfeasors–i.e. in a negligence action,
    comparative negligence involves looking at the respective duties
    and breaches of the joint tortfeasors. Such a system necessarily
    requires that a jury consider the actions of the joint tortfeasors
    leading up to the injury to determine whether both were at fault
    and, if so, how much of the fault each joint tortfeasor should
    shoulder.      Maryland has explicitly rejected adopting
    comparative fault or comparative negligence in favor of
    maintaining contributory negligence. See Franklin v. Morrison,
    
    350 Md. 144
    , 167-68 (1998); Harrison v. Montgomery Cty. Bd.
    of Ed., 295 MD. 422, 463 (1983).
    Apportionment of damages, on the other hand, involves
    instances where there are two or more causes and a reasonable
    basis exists for determining the contribution of each cause to a
    single harm–i.e. in a negligence action, apportionment of
    damages involves looking at the causes of the injury, not the
    duties and breaches of the tortfeasors. Restatement (Second) of
    4
    Torts, Section 433A(1)(b). Under apportionment, the relative
    fault of the parties is not considered and the doctrine applies
    ‘whenever two or more causes have combined to bring about
    harm to the plaintiff[.]’ Restatement (Second) of Torts, Section
    433A, cmt. a.        This Court has adopted and applied
    apportionment of damages in certain cases. See 
    Bickerstaff, 187 Md. App. at 249-51
    (a FELA case); 
    Gress, 150 Md. App. at 388-89
    , 388 n.11 (an asbestos case with asbestos industry and
    cigarette industry defendants); 
    Mayer, 145 Md. App. at 249
    -50,
    254-55 (a medical negligence case). Thus, the doctrines of
    apportionment of damages and comparative fault/negligence are
    distinct and involve different considerations.
    Under relevant Maryland case law and the Restatement (Second)
    of Torts, apportionment of damages between several causes of
    an injury is appropriate in certain circumstances. Pursuant to
    Restatement (Second) of Torts, Section 433A(1), apportionment
    of damages between two or more causes is appropriate ‘where
    (a) there are distinct harms, or (b) there is a reasonable basis for
    determining the contribution of each cause to a single harm.’
    Multiple causes may include the combination of acts of two or
    more parties, an innocent act and a negligent act, or an
    aggravation of a preexisting injury. Restatement (Second) of
    Torts, Section 433A, cmt. a.”
    I agree with the reasoning of the Court of Special Appeals that apportionment of damages
    is consistent with tort law in Maryland.
    Because the trial court failed to conduct a Frye-Reed hearing, I would order a limited
    remand for an evidentiary hearing to ascertain whether the defense expert’s theory that
    Hewitt’s injury is capable of apportionment is generally accepted in the scientific community.
    See Montgomery Mut. Ins. Co. v. Chesson, 
    399 Md. 314
    , 333-34, 
    923 A.2d 939
    (2007)
    (holding that a trial court’s failure to conduct a Frye-Reed hearing is appropriate for a limited
    remand because it generally involves matters collateral to the substantive issues of a case and
    5
    verdicts should not be vacated unnecessarily). On remand, if the trial court finds that the
    defense expert’s methods and theories satisfy the Frye-Reed test, the trial court should vacate
    the judgment, order a new trial, and submit the issue of apportionment to the jury. If the
    court finds to the contrary, the judgment should stand. See 
    id. at 336,
    923 A.2d at 951.
    Judge Battaglia authorizes me to state that she joins in this concurring and dissenting
    opinion.
    6