There was conflicting testimony at the trial. McKenzie testified that the MeCullochs had not abated pre-existing housing code violations, which he described in some detail. The MeCullochs offered contrary evidence, including housing code violation abatement cards, testimony by a housing inspector, and their own testimony. The trial thus presented a classic credibility contest, which could only be resolved by the jury, and not by the judge. See, e.g., Rich v. District of Columbia, 410 A.2d 528, 532-34 (D.C.1979); see also Brady v. Southern R.R. Co., 320 U.S. 476, 479-80, 64 S.Ct. 232, 234-35, 88 L.Ed. 239 (1943) (court may direct a verdict “[w]hen the evidence is such that without weighing the credibility of the witnesses there can be but one reasonable conclusion as to the verdict.” (Emphasis added)).7 Indeed, it appears from the jury’s verdict on the abatement claim, by which half of the rent increase was wiped out for each of the twenty-four months, including July 1987, that the jury may have believed McKenzie, rather than the MeCullochs and their witnesses, as to the condition of the premises in July 1987. Even if the judge’s assessment of credibility would have been different, that is not disposi-tive. III.