dissents in a memorandum as follows: It has long been the rule that an instruction on the question of comparative negligence should be given to a jury when there is[*351] any valid line of reasoning and permissible inferences that could possibly lead a rational person to conclude that the plaintiff was negligent (see, Nallan v Helmsley-Spear, Inc., 50 NY2d 507, 517; Wartels v County Asphalt, 29 NY2d 372, 379). Supreme Court, in rejecting defendant’s request to submit the issue to the jury, violated this well-established principle.

On January 22, 1994, plaintiff had been at his uncle’s home when he decided to go out and buy a pair of shoes. After traversing two blocks, plaintiff reached an icy sidewalk in front of defendant’s lot where he slipped and fell. At the time of the fall, the sidewalk was covered with hard ridged ice. In fact, the first police officer to arrive at the scene testified that “[t]here was a lot of ice, very heavy ice * * * it was very rocky * * * very, very thick” and she was herself concerned that in approaching plaintiff she might fall. On appeal, plaintiff notes that the ice arose from snow that had congealed and hardened by the passage of vehicles into and out of the lot.

At the post-trial charge conference, defendant requested that the jury be instructed on the law regarding plaintiffs comparative negligence. The trial court, however, refused to give such an instruction. In my view, this was error.

What is evident from plaintiffs testimony is that he walked the two blocks from his uncle’s home to the location of the accident without incident. This fact, when juxtaposed with the officer’s description of the ice as being peculiarly dangerous at the accident location, makes it clear that the icy condition in front of defendant’s lot was different in kind from that of the surrounding area.

Notwithstanding the obviously precarious nature of the ice and its unique danger, plaintiff made a decision — a decision he was not compelled to make. In this regard, faced with the menacing condition of the sidewalk, plaintiff chose to proceed ahead even though he had at least one other safer alternative, namely, to turn back. After all, it can be readily inferred from the evidence that the route plaintiff walked to the place of his fall must have been far safer than the ice upon which he fell. Moreover, there must have been many other alternative routes available to plaintiff. Even plaintiff in his appellate brief acknowledges that had plaintiff walked in the street he would have avoided the ice. Hence, plaintiffs decision to traverse the ice and expose himself to its obvious danger, instead of choosing some alternate path, raised a question of fact as to whether his conduct was culpable (cf., Stirpe v Maloney & Sons, 252 AD2d 871; Morgan v Genrich, 239 AD2d 919). While the majority declines to take cognizance of the alternatives, a common[*352] sense interpretation of the evidence compels the conclusion that they existed.

In fact, plaintiff himself apparently recognizes the inevitability of this conclusion but asserts that Supreme Court’s failure to give the charge is excusable because defendant did not focus its cross-examination on the topic of alternative routes. This, however, does not provide a basis for precluding the defense of comparative negligence. In determining whether an instruction is required, the question is not whether defendant elicited evidence supporting the instruction, but whether there is any evidence within the four corners of the testimony warranting the instruction, regardless of who elicited it (see, Keeton v Cardinal O’Hara High School, 233 AD2d 839; National Bank v Systems Home Improvement, 69 AD2d 557/562, affd 50 NY2d 814; cf., People v Steele, 26 NY2d 526, 528). Here, an instruction on comparative negligence was warranted based upon the evidence plaintiff himself submitted.

In sum, the question of a plaintiff’s comparative negligence is “ ‘almost always * * * a question of fact’ and is ‘almost exclusively a jury function’” (Nallan v Helmsley-Spear, Inc., supra, at 516-517, quoting Wartels v County Asphalt, 29 NY2d 372, 379, supra). In view of this record, I cannot conclude, as does the majority, that this is that rare case where a court may state, as a matter of law, that plaintiff was not in any manner culpable. As indicated, there was a line of reasoning that, without resort to any speculation, supported an instruction on comparative negligence.

Accordingly, I would reverse the judgment of Supreme Court and remand this case for a new trial limited to the issue of plaintiff’s negligence.