Blomquist v. Horned Dorset Primavera, Inc. , 925 F.3d 541 ( 2019 )


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  •           United States Court of Appeals
    For the First Circuit
    No. 17-1856
    KRISTIN BLOMQUIST; KEVIN WARNER,
    Plaintiffs, Appellants,
    v.
    THE HORNED DORSET PRIMAVERA, INC.;
    UNIVERSAL INSURANCE GROUP, INC.,
    Third Party Plaintiffs, Appellees,
    VICTORIA BANUCCI; MICHAEL DIXON;
    CONJUGAL PARTNERSHIP BANUCCI-DIXON,
    Third Party Defendants.
    APPEAL FROM THE UNITED STATES DISTRICT COURT
    FOR THE DISTRICT OF PUERTO RICO
    [Hon. Marcos E. López, U.S. Magistrate Judge]
    Before
    Torruella, Thompson, and Kayatta,
    Circuit Judges.
    Roberto Boneta, with whom Boneta & Nogueras, LLC was on brief,
    for appellants.
    Julio C. Cayere-Quidgley, with whom Héctor J. Ferrer-Ríos,
    were on brief, for appellee Universal Insurance Group, Inc.
    May 31, 2019
    TORRUELLA, Circuit Judge.       A destination wedding in
    Puerto Rico can be a wonderfully jovial affair.               Spirits flow
    freely.   The sights are beautiful.     Guests chat and dance into the
    early morning hours under the Caribbean sky.          Unchecked joviality,
    however, has an unfortunate tendency of leading to carelessness.
    Add an intentionally wet and soapy dancefloor to the equation and
    someone is bound to get hurt. And when someone gets hurt, lawsuits
    frequently follow.   That is what happened here.
    Appellants   Kristin   Blomquist     and    her   husband   Kevin
    Warner filed suit in the District of Puerto Rico against The Horned
    Dorset Primavera Hotel, Inc. (the "Hotel"), claiming the Hotel was
    negligent in relation to a slip and fall Blomquist suffered during
    their friends' wedding in the Hotel premises. Blomquist and Warner
    alleged that the Hotel was liable for Blomquist's injuries because
    it did not respond in accordance with its heightened responsibility
    under Puerto Rico law to the presence of a dangerous condition in
    its premises -- a wet and soapy dancefloor.           The jury disagreed,
    and the district court entered judgment accordingly.
    Discontent   with   this   result,    Appellants     moved    for
    judgment as a matter of law or, alternatively, for a new trial.
    The district court denied both motions, finding that the jury's
    verdict was reasonably supported by the evidence and that the
    Appellants' motion did not provide basis for either a judgment as
    -2-
    a matter of law or a new trial.           Blomquist and Warner appealed,
    and we now affirm.
    I. BACKGROUND
    A.   Factual Background
    Appellants     Kristin    Blomquist      and   Kevin   Warner
    ("Appellants"), a married couple from New York, traveled to Puerto
    Rico on April 4, 2013, to attend their friends' destination
    wedding.     Upon arriving in Puerto Rico, Blomquist and Warner
    checked into the Horned Dorset Primavera Hotel,1 where the wedding
    ceremony, banquet, and reception were to be held on April 6, 2013.
    The ceremony and banquet were held in one of the Hotel's
    ballrooms.    After the banquet, the wedding guests moved outdoors
    for the reception.      The outdoor reception area consisted of a
    rectangular space, about thirty-five meters long and eight meters
    wide, described as a "plaza" (the "plaza") and a slightly elevated
    pool section.   The plaza is located in a space between two sets of
    stairs, one leading up to the second floor of the Hotel's main
    building, and the other leading up to the elevated pool section.
    Here, a bar was set up and a temporary dancefloor2 was installed.
    1 During the course of the proceeding, the Hotel filed for
    bankruptcy.   The bankruptcy court allowed the case to continue
    with the Hotel's insurer, Universal Insurance Group, Inc., as the
    defendant.
    2 The temporary dancefloor did not belong to the Hotel.           It was
    rented from an outside vendor by the wedding planner.
    -3-
    A DJ set up his equipment in the elevated pool area, which had
    been furnished with tables and chairs.               Under the stars, guests
    enjoyed an open bar and danced to the DJ's tunes.
    The festivities, however, took a turn for disorder as
    the night wore on.        The younger crowd of guests that remained at
    the reception -- a group of approximately forty-five to fifty
    individuals -- began jumping into the pool and transitioning
    between the pool and the nearby dancefloor.            At some point between
    12:00am    and    1:30am,    following      the   bride's   lead,   the   guests
    purposefully wet the dancefloor and began to "slip and slide."3
    They slipped and slid laying on their front sides, backsides, and
    sideways.       A few of the partygoers even began running from the top
    of the pool area staircase to the dancefloor, in an effort to slide
    across it.
    The Hotel's most senior staff member present, Geraldine
    Thouvenin, witnessed these actions and proceeded to confront the
    groom, Michael Dixon, regarding the guests' behavior.                Thouvenin
    warned the groom that this behavior was not recommended and was
    dangerous.       The groom arrogantly disregarded Thouvenin's warning
    and, in outright defiance, went to the Hotel's kitchen, retrieved
    soap,     and    poured     it   on   the    dancefloor     to   increase    its
    3 "Slipping and sliding" refers to the deliberate act of a person
    using the momentum created by a vertical movement to launch their
    body across a flat surface.
    -4-
    slipperiness.4     Other wedding guests assisted the groom, pouring
    water and soap on the dancefloor to add to the "fun."
    At some point after the soap and water were poured,
    Blomquist left the reception and pool area to change into her
    bathing suit.     When Blomquist returned to the reception area, she
    slipped and fell on the wet and soapy dancefloor,5 fracturing her
    wrist and injuring her back.
    B.   Procedural Background
    On    November   1,   2013,   Blomquist   and   Warner   filed   a
    complaint in the District of Puerto Rico on diversity jurisdiction
    grounds against the Hotel and its insurance company, Universal
    Insurance Group, Inc.       Blomquist and Warner alleged that the Hotel
    was negligent in failing to provide a safe facility, allowing
    inherently dangerous conditions to continue, and neglecting to
    warn all parties at risk. Blomquist demanded $40,909.18 in medical
    4 Appellants did not sue the groom. As the district court noted,
    if anything, Appellants attempted to prevent a third-party
    complaint against the groom and bride to proceed.
    5 Consonant with the governing standard of review, Appellants'
    counsel conceded at oral argument that, for purposes of our review
    of the district court's denial of their motion for judgment as a
    matter of law, we must assume that Blomquist's injuries were the
    result of her deliberate attempt to slip and slide on the
    dancefloor. Appellants' motion for new trial, however, is based
    on the premise that Blomquist's fall was. Thus, for purposes of
    their appeal from the district court's denial of their motion for
    new trial, Appellants maintain that Blomquist did not partake in
    the slipping and sliding on the dancefloor.
    -5-
    damages; $400,000 for pain and suffering; $200,000 for disability
    to engage in her normal life and career activities; and $250,000
    for mental suffering and anguish.     Warner demanded $200,000 for
    mental pain and anguish.
    A two-day jury trial was held on October 4 and 5, 2016.6
    After closing arguments, the jury was provided a verdict form with
    the following two-prong question (the "verdict question"):
    Do you find by a preponderance of evidence that The
    Horned Dorset Primavera was negligent in the operation
    of the hotel facility at the wedding reception held in
    April 2013, and that its negligence proximately caused
    damages to Kristin Blomquist?
    The jury responded in the negative.7    Accordingly, the
    district court dismissed Blomquist and Warner's claims and entered
    judgment in favor of the Hotel and its insurer.
    Dissatisfied, Blomquist and Warner moved for judgment as
    a matter of law.   In the alternative, they requested a new trial.
    The district court denied both motions and this appeal ensued.
    6 Pursuant to the parties' consent, trial was conducted before a
    magistrate judge.
    7 If the jury had responded "Yes" to the verdict question, it was
    required to proceed to additional questions. Specifically, the
    verdict form asked the jury: whether it found that the Hotel,
    Blomquist, and/or Warner had acted negligently and if their
    negligence constituted the proximate cause of Blomquist's
    injuries; what proportion of the negligence that caused damage to
    Blomquist was attributable to each of these parties; and, how much,
    if anything, it would award Blomquist and Warner for their physical
    and emotional injuries.
    -6-
    II. DISCUSSION
    A.   Appellants' Motion for Judgment as a Matter of Law
    We review de novo the denial of a motion for judgment as
    matter of law under Rule 50(b) of the Federal Rules of Civil
    Procedure.     Thomas & Betts Corp. v. New Albertson's, Inc., 
    915 F.3d 36
    , 60 (1st Cir. 2019) (citation omitted).      Notwithstanding,
    "our scrutiny of the jury verdict is tightly circumscribed."
    Sailor Inc. F/V v. City of Rockland, 
    428 F.3d 348
    , 351 (1st Cir.
    2005) (internal quotation marks omitted).      Although we examine the
    record as a whole, the facts are construed in the light most
    favorable to the jury verdict, Jennings v. Jones (Jennings I), 
    499 F.3d 2
    , 3 (1st Cir. 2007), and any inferences are drawn in favor
    of the non-movant, Jennings v. Jones (Jennings II), 
    587 F.3d 430
    ,
    438 (1st Cir. 2009). Moreover, "we do not evaluate the credibility
    of the witnesses or the weight of the evidence."      Lama v. Borrás,
    
    16 F.3d 473
    , 475 (1st Cir. 1994).       In sum, "[w]e must sustain the
    district court's denial of a Rule 50(b) motion for judgment as a
    matter of law unless the evidence . . . could lead a reasonable
    person to only one conclusion, namely, that the moving party was
    entitled to judgment."       
    Id. at 476
    (internal quotation marks
    omitted).
    Appellants' motion for judgment as a matter of law was
    grounded on their contention that the Hotel was liable because it
    -7-
    did not comply with its "duty to remediate the dangerous condition"
    on the dancefloor despite its knowledge of the "dangerous activity"
    taking place thereon.   In denying Appellants' motion for judgment
    as a matter of law, the district court recounted that the jury was
    presented evidence reflecting that the dangerous condition was
    created by "wedding guests and/or the groom"; that Warner was aware
    of the condition and even partook in the slipping and sliding; and
    that at least one member of the Hotel's staff -- Thouvenin --
    warned the groom about the dangers the condition presented.   Based
    on this, the district court determined that the evidence "[did]
    not point so strongly and overwhelmingly in favor of liability
    that no reasonable jury could have returned a verdict for [the
    Hotel and its insurer]."8
    Appellants filed their suit under Puerto Rico's general
    8 In fact, the district court went beyond this, concluding that
    "the Jury determined the Hotel was not negligent," which implied
    that they "found the Hotel staff acted reasonably and prudently
    under the circumstances in deciding not to halt the wedding
    reception" and instead only warning Warner about the dangerous
    condition. Because a negative response by the jury to either of
    the verdict question's two prongs -- one related to negligence and
    the other to causation -- would have freed the Hotel from
    liability, see P.R. Civ. Code Art. 1802, P.R. Laws Ann. tit. 31,
    § 5141 (requiring both negligence and causation for the imposition
    of liability), the district court's conclusion regarding the
    jury's finding of negligence is not necessarily accurate. It is
    possible that the jury found that the Hotel was negligent in not
    taking further action (e.g., warning every single guest about the
    dangerous condition) but that its negligence was not the proximate
    cause of Blomquist's injury.
    -8-
    tort statute, Article 1802 of the Puerto Rico Civil Code, P.R.
    Laws Ann. Tit. 31, § 5141 ("Article 1802").    Article 1802 provides
    that "[a] person who by an act or omission causes damage to another
    through fault or negligence shall be obliged to repair the damage
    so done."    
    Id. Negligence under
    Article 1802 is generally defined
    as "the failure to exercise due diligence to avoid foreseeable
    risks."     Woods-Leber v. Hyatt Hotels of P.R., Inc., 
    124 F.3d 47
    ,
    50 (1st Cir. 1997).     To succeed on a negligence-based tort claim,
    a plaintiff must establish four essential elements: "(1) a duty
    requiring the defendant to conform to a certain standard of
    conduct, (2) a breach of that duty, (3) proof of damage, and (4) a
    causal connection between the damage and the tortious conduct."
    
    Id. at 50.
       "[L]iability will only arise if the damages complained
    of were reasonably foreseeable to the defendant."     Irvine v. Murad
    Skin Research Labs., Inc., 
    194 F.3d 313
    , 322 (1st Cir. 1999).
    Although they are not absolute insurers of their guests'
    well-being, hotels have a heightened duty of care towards their
    guests.     
    Woods-Leber, 124 F.3d at 51
    .     A hotel is required to
    maintain its premises in such conditions that its guests will not
    suffer foreseeable injuries; in other words, the hotel must ensure
    that the areas to which its guests have access are safe.    Cotto v.
    C.M. Ins. Co., 
    16 P.R. Offic. Trans. 786
    , 793 (1985).    In carrying
    out its duty of care, a hotel must act as would a "prudent and
    -9-
    reasonable person under the circumstances."              Vázquez-Filippetti v.
    Banco    Popular   de     P.R.,   
    504 F.3d 43
    ,     49   (1st   Cir.   2007).
    Accordingly, a hotel breaches its duty of care, and thus is liable
    for an injury caused by a dangerous preexisting condition within
    the hotel's premises (e.g., as a result of an accidental fall), if
    (1) the hotel knew or should have known of the condition, and
    (2) the hotel did not take the precautions of a prudent and
    reasonable person to avoid or remedy the foreseeable risks the
    condition created.        See 
    id. at 49
    (holding that a breach of duty
    only occurs if a defendant "acted (or failed to act) in a way that
    a reasonably prudent person would foresee as creating undue risk");
    
    Woods-Leber, 124 F.3d at 51
    (citing Goose v. Hilton Hotels, 
    79 P.R.R. 494
    , 499 (1956)).
    Appellants' tort claim is not at all unusual.                  As we
    have    noted   before,    "[c]ases     premised   on    the   existence    of   a
    dangerous condition often arise from a 'slip-and-fall,' caused by
    a wet or slippery floor, and involve a claim that the business
    owner was negligent in permitting the condition to remain because
    it is foreseeable that a wet floor is likely to cause injury."
    
    Vázquez-Filippetti, 504 F.3d at 50
    .
    For Appellants to succeed on their challenge to the
    district court's denial of their motion for judgment as a matter
    of law, they must establish that, based on the evidence presented
    -10-
    at trial, a reasonable jury could only conclude: (1) that the Hotel
    breached its duty of care towards Blomquist (i.e., that the Hotel
    was negligent), and (2) that this breach of duty constituted the
    proximate cause of Blomquist's injuries.9        See 
    Lama, 16 F.3d at 476
    ; 
    Woods-Leber, 124 F.3d at 50
    .         A finding to the negative on
    either is fatal to Appellants' request for a judgment as a matter
    of law.
    Appellants' chances for success slip from their grasp on
    the second prong -- the jury was presented sufficient evidence to
    conclude that the Hotel's breach of duty did not constitute the
    proximate cause of Blomquist's injuries.          Moreover, sufficient
    evidence was presented for the jury to conclude instead that the
    proximate cause was Blomquist's deliberate conduct.
    1. Breach of Duty
    Appellants   aver   that   no   reasonable   jury   could   have
    failed to find that the Hotel was negligent and breached its duty
    of care under Puerto Rico law in the present case's circumstances;
    in particular, where the Hotel "allow[ed] its guests to wet and
    soap up a dancefloor during a wedding (with an open bar) . . .
    [and] engage in dangerous behavior on it," and only advised one of
    9 The two other elements of a negligence-based tort claim are not
    at issue here. The Hotel does not dispute its heightened duty of
    care under Puerto Rico law or the physical injuries suffered by
    Blomquist.
    -11-
    the persons present, the groom, to discontinue the dangerous
    behavior.
    They contend that the Hotel had knowledge of the wet and
    soapy dancefloor and that, since Blomquist's fall and the resulting
    injuries were foreseeable, the Hotel had a duty to warn the guests
    of the condition of the dancefloor and, furthermore, remedy the
    situation by taking measures to put an end to the guests' dangerous
    behavior.    Appellants rely on the testimony of Hotel employee
    Thouvenin in support of this contention.       Thouvenin testified that
    she witnessed the wet dancefloor and the guests sliding on it.         Up
    to this point, we can agree with Appellants.          Because Thouvenin
    was present as an employee of the Hotel, her testimony regarding
    the dancefloor's condition and the wedding guests' behavior could
    only led a reasonable jury to conclude that the Hotel was aware of
    the dangerous condition on the dancefloor and of the dangerous
    activity taking place thereon.          Similarly, the jury could only
    have   concluded   that   the   risks    presented   by   the   precarious
    combination of a wet and soapy surface and the ever-present forces
    of gravity, such as that of Blomquist's fall, were foreseeable to
    the Hotel.     Reaching the opposite conclusion would belie basic
    human experience, as reflected in a long line of case law.            See
    generally Donald M. Zupanec, Store or Business Premises Slip-and-
    Fall: Modern Status of Rules Requiring Showing of Notice of
    -12-
    Proprietor of Transitory Interior Condition Allegedly Causing
    Plaintiff's Fall, 
    85 A.L.R. 3d 1000
    (2019) (collecting cases).
    With these two elements met -- knowledge of the dangerous
    condition and a foreseeable risk -- the Hotel had, as a matter of
    law, a duty to address the dancefloor's dangerous condition.
    
    Vázquez-Filippetti, 504 F.3d at 50
    .        In doing so, the Hotel had to
    act   as   would   a     prudent   and    reasonable   person   in   those
    circumstances, 
    id. at 49
    , and here is where things start to slide
    downhill for Appellants. The inquiry as to whether the Hotel acted
    as a prudent and reasonable person is case-specific and fact-
    dependent.   See Ocasio-Ocasio v. Guadalupe-Hernández, Civil No.
    09-1982 (SEC), 
    2010 WL 5184785
    , at *3 (D.P.R. Dec. 21, 2010)
    (citing Irvine v. Murad Skin Research Labs., Inc., 
    194 F.3d 313
    ,
    322 (1st Cir. 1999) (applying Puerto Rico law)).            As such, the
    question of how the Hotel should have responded to the situation
    on the dancefloor is one better left for the fact-finder, in this
    case, the jury.    
    Id. This, in
    tandem with our standard of review
    -- which requires that we construe the facts in a light most
    favorable to the jury verdict and draw any inferences in favor of
    the Hotel, Jennings 
    I, 499 F.3d at 3
    ; Jennings 
    II, 587 F.3d at 438
    -- sets up a slippery slope for Appellants' fall to failure.
    Thouvenin testified that the only action the Hotel took
    to prevent the wedding guests from continuing to slip and slide on
    -13-
    the wet dancefloor was warning the groom that such conduct was not
    safe.10     We recognize that the extent of this response was, as a
    matter    of    law,   lacking   and,    thus,   inappropriate      given     that
    Thouvenin's warning was directed at a single individual,11 despite
    the Hotel having a heightened duty of care towards every guest,
    including       Blomquist.       See    
    Woods-Leber, 124 F.3d at 51
    .
    Notwithstanding, a finding that the Hotel breached its heightened
    duty   of    care   by   not   warning    all    guests,    and   Blomquist     in
    particular, is not enough to save Appellants.              The jury could have
    found that the Hotel did not have a duty of take the further step
    of remedying the dangerous condition by preventing the guests from
    using the dancefloor.        This finding, as will become evident below,
    plays a critical role in our proximate cause analysis.
    The jury was certainly presented evidence of additional
    measures the Hotel could have taken to prevent the guests from
    using the dancefloor.          On cross-examination, Appellants' counsel
    10The content and forcefulness of Thouvenin's warning to the groom
    is not completely clear on the record. Thouvenin, however, did
    testify that in the hospitality business employees cannot use
    language as forceful as "You stop it right now" when talking to
    guests.
    11Our review of the record reveals that this warning was not the
    first or only warning given to the groom about wetting the
    dancefloor.   Before formalities commenced on the day of the
    wedding, the Hotel's General Manager told the groom that "the
    [dance]floor cannot be wet." In fact, the Hotel acquired a tent
    to place over the dancefloor in order to prevent it from getting
    wet if it rained.
    -14-
    asked Thouvenin if she requested the Hotel's security guard to
    intervene with the dancing guests or if she turned off the power
    so there was no light, to which she responded that she did not.
    These could seem to be effective measures to us, but the jury might
    as well have found that they would have been counterproductive.
    For example, the crowd of guests could have reacted violently to
    a security guard's intervention, even more so if they were under
    the influence of alcohol. As the Hotel's general manager testified
    based on his forty-six years of hospitality experience, when guests
    are provided an open bar they tend to drink more and "lots of
    things . . . happen."          Likewise, the jury could have concluded
    that   turning     off   the   lights    would    have   been   ineffective    in
    deterring    the    guests'     behavior       and,   furthermore,   made     the
    dancefloor more dangerous than it already was by limiting their
    vision.
    Based on the foregoing, it was reasonable for the jury
    to conclude that the Hotel's breach of duty towards Blomquist was
    limited to its failure to warn her of the dangerous conditions on
    the dancefloor and, by the same token, that the Hotel's heightened
    duty of care did not require it to take additional measures to
    prevent her from using the dancefloor.
    -15-
    2. Proximate Cause
    Under Puerto Rico law, a negligent omission, such as a
    hotel's failure to carry out its duty of care, may constitute the
    proximate cause12 of an injury if "in all likelihood, verging on
    certainty, the injury could have been avoided if the action omitted
    would have been carried out."        Soc. de Gananciales v. G. Padín
    Co., 
    17 P.R. Offic. Trans. 111
    , 124 (1986) (citation omitted).
    General      experience   guides     the    analysis    to     make     such
    determinations.      See Díaz v. E.L.A., 
    18 P.R. Offic. Trans. 473
    ,
    500 (1987).     After a careful review of the record, we find that
    the   jury   was   presented   sufficient   evidence   to    conclude   that
    Blomquist would have sustained her injuries even if the Hotel had
    met its duty of care by warning her of the dangerous condition on
    the dancefloor.
    At trial, the Hotel presented two key pieces of evidence
    upon which the jury could reach this conclusion: a video showing
    the wedding guests' behavior on the dancefloor, and the testimony
    of Hotel employee Antonio Rosa Miranda ("Rosa"), who was working
    as a waiter during the wedding reception.        The video depicts the
    atmosphere at the dancefloor area during the early morning hours.
    It shows guests joyfully slipping and sliding in their bathing
    12 The legal cause of a tortious injury is also referred to as
    "adequate cause" in Puerto Rico case law.
    -16-
    suits across the visibly wet13 yet crowded dancefloor, while others
    dance beside them.    Some guests even have friends grab their limbs
    and spin them on the dancefloor.       Despite Blomquist's testimony to
    the contrary, based on the video, the jury could have concluded
    that Blomquist knew the dancefloor was wet, as she saw the other
    guests slipping and sliding, but nonetheless attempted to join the
    fun, which ultimately led to her injuries.       That Blomquist changed
    into her bathing suit after the dancefloor had been soaked with
    water and soap, and thus after the guests had already began to
    slip and slide therein, as stipulated by the parties, further
    supports the belief that she was determined to partake in the
    dangerous behavior.
    Rosa's testimony reinforces this notion.         He testified
    that he saw many of the guests "running and sliding chest first on
    the dancefloor."     Among these guests was Blomquist, whom he saw
    fall while "running or . . . slipp[ing] or . . . try[ing] to slide
    and [going] . . . sideways."         Rosa was able to single Blomquist
    out among the crowd of guests on the dancefloor with certainty
    because she was, according to him, "bigger than all the other
    girls."
    Together,    the   video    and   Rosa's   testimony   provided
    13The video also shows a guest further wetting the dancefloor by
    spraying what appears to be champagne into the air.
    -17-
    sufficient evidence for a reasonable jury to conclude that the
    proximate cause of Blomquist's injuries was not the Hotel's breach
    of its duty of care towards her, but rather Blomquist's deliberate
    attempt to slip and slide on the wet dancefloor like the other
    guests.    See Soc. de Gananciales v. Jerónimo Corp., 3 P.R. Offic.
    Trans. 179, 186 (1974) (holding that, under Puerto Rico law,
    proximate cause is not "every condition [without] which the result
    would not have been produced," but rather only that condition
    "which    ordinarily   produces    [the     result]   according   to    general
    experience.").     In other words, sufficient evidence was presented
    for the jury to conclude that Blomquist's fall was not the result
    of an accident attributable to the Hotel's failure to warn her of
    the dangerous condition in the dancefloor because, based on common
    experience, she would have decided to partake in the slipping and
    sliding    that   caused   her    injuries    regardless.     See      Aquellos
    Aseguradores de Lloyd's London v. Compañía de Desarrollo Comercial
    de P.R., 126 D.P.R. 251, 264 (1990), 
    1990 WL 710138
    (noting that
    there are situations in which "one cause substitutes [and] takes
    [the] place" of a prior natural cause14 of an injury, thereby
    14 Puerto Rico law distinguishes natural cause from legal or
    proximate cause. Natural cause is an expansive concept, covering
    "any of the conditions necessary to produce an injury," while legal
    or proximate cause is only "the condition that ordinarily causes
    the damage, according to common experience." Jiménez v. Pelegrina
    Espinet, 
    12 P.R. Offic. Trans. 881
    , 887 (1982).
    -18-
    "break[ing] the causal nexus . . . [and] becoming . . . the only
    legal cause of the resulting damage, thus releasing the first actor
    from liability" (citation omitted)); see also Crespo v. H.R.
    Psychiatric Hosp., Inc., 
    14 P.R. Offic. Trans. 1027
    , 1034 (1983)
    (in the context of wrongful death claim, recognizing the difficulty
    in preventing a determined individual from performing a self-
    injurious act).    After all, the jury had already been presented
    evidence of the ineffectiveness of the Hotel's warnings; even after
    being warned by Thouvenin about the risks of slipping and sliding
    on the dancefloor, the groom continued engaging in this dangerous
    behavior.
    Because the evidence presented at trial could lead a
    reasonable jury to conclude that the Hotel's failure to meet its
    duty of care was not the proximate cause of Blomquist's injuries,
    we affirm the district court's denial of Appellants' motion for
    judgment as a matter of law.
    B.   Appellants' Motion for a New Trial
    We review the district court's denial of Appellants'
    motion for a new trial for abuse of discretion.   Jennings 
    II, 587 F.3d at 435-36
    (citing Gasperini v. Ctr. for Humanities, Inc., 
    518 U.S. 415
    , 435 (1996)).   A district court may grant a new trial "if
    the verdict is against the weight of the evidence" or if "the
    action is required in order to prevent injustice."      
    Id. at 436
    -19-
    (quoting Kearns v. Keystone Shipping Co., 
    863 F.2d 177
    , 181 (1st
    Cir. 1988)).   "On appeal, we owe much deference to the trial
    court's determination. . . . We reverse only if we find that the
    trial court has abused its discretion in making its assessment of
    the weight of the evidence."      Correia v. Feeney, 
    620 F.3d 9
    , 11
    (1st Cir. 2010).
    Unlike   our   review   of     a   district   court's   decision
    regarding a motion for judgment as a matter of law, however, our
    "new trial motion standard of review . . . [does] not requir[e]
    that we take the evidence in favor of the verdict."         Jennings 
    II, 587 F.3d at 438
    (citations omitted).15         Notwithstanding, when it
    comes to witness credibility our standard tilts in favor of
    deferring to the jury's verdict.       See 
    Correia, 620 F.3d at 12
    ("It
    is axiomatic that, absent exceptional circumstances, issues of
    witness credibility are to be decided by the jury." (quoting United
    States v. García, 
    978 F.2d 746
    , 748 (1st Cir. 1992))).                "In
    general, conflicting testimony or a question as to the credibility
    of a witness are not sufficient grounds for granting a new trial."
    15 This court recently expressed that the standard of review for
    the denial of a motion for judgment as a matter of law, which is
    deferential to the jury's verdict, may be applied "in reviewing
    the denial of a motion for a new trial . . . predicated on a
    challenge to the sufficiency of the evidence, [given that] the
    inquiries merge." Dimanche v. Mass. Bay Transp. Auth., 
    893 F.3d 1
    , 8 n.9 (1st Cir. 2018). In the present case, the result would
    be the same under either the deferential or traditional standard.
    -20-
    
    García, 978 F.2d at 748
    (internal quotation marks omitted).
    Appellants       aver   that   the    district      court    abused    its
    discretion by not considering their arguments challenging Rosa's
    testimony that he saw Blomquist dancing and then falling while
    attempting to slip and slide on the dancefloor.                      They stress two
    points: first, that Rosa testified that Blomquist was wearing a
    black bathing suit when she fell, while stipulated photo evidence
    reflects that she was actually wearing a black dress over a pink
    bathing    suit;    and,    second,    that      the    testimony      was   directly
    contradicted by Blomquist's testimony that she did not slip and
    slide on the dancefloor, and was unaware it was slippery.
    The nature of this challenge sets it up to fail.                        We
    have held that "conflicting testimony or a question as to the
    credibility of a witness are [generally] not sufficient grounds
    for granting a new trial."             
    García, 978 F.2d at 748
    (citation
    omitted).     This is precisely the type of challenge Appellants
    raise.      They argue that we should strip Rosa's testimony of
    credibility,       accept    Blomquist's      version     of    the     events,    and
    conclude    that     the    district   court      abused       its    discretion    in
    concluding that the jury's verdict was not "against the weight of
    the evidence." Jennings 
    II, 587 F.3d at 436
    . We are not persuaded.
    The    jury     was   presented      with   Blomquist's       testimony,
    claiming that her fall was accidental, and Rosa's testimony, which
    -21-
    strongly suggested that Blomquist's fall was the result of an
    unsuccessful attempt to slip and slide on the dancefloor. No other
    witnesses    testified    about    the    specific   circumstances     of
    Blomquist's fall.    Thus, the jury had to decide whether to accept
    Blomquist's account of how she fell or Rosa's.       That they chose to
    accept   Rosa's,   despite   the   inconsistencies   in   his   testimony
    regarding Blomquist's attire, is not grounds for a new trial.
    
    García, 978 F.2d at 748
    .
    We hold that the district court did not abuse its
    discretion in finding that the weight of the evidence supports the
    jury's verdict, and therefore affirm the denial of Appellants'
    motion for a new trial.16
    III. CONCLUSION
    Based on the foregoing, we affirm the district court's
    denial of Appellants' motion for judgment as a matter of law and
    motion for a new trial.
    Affirmed.
    16Inasmuch as Appellants attempt to raise an argument based on the
    doctrine of comparative negligence under Puerto Rico law, they did
    not properly flesh it out on appeal and therefore we deem it
    waived. See U.S. v. Zannino, 
    895 F.2d 1
    , 17 (1st Cir. 1990).
    -22-