Definition: In this task, you are given a Reddit post as a text. Your task is to generate a title for this text. The title should start with "TIFU by", followed by a situation that caused humor. The title should contain 7-12 words, ideally.
Input: Text: so of course this didn't happen yesterday, but at least a year or two ago. i was staying in the marriott in mexico city on a business trip at the time, which happened to coincide with the san antonio spurs playing a team there and staying in the exact same hotel (which i didn't know). on the second day of my stay there i get into the lift and end up sharing it with this 6ft 11, 250lb black dude. he's also wearing pretty obvious basketball clothing. trying to make small talk, i ask him if he plays basketball, to which he answers: "no, i just like to dress the part." me being my six-in-the-morning self takes him half seriously and don't realize i'm standing next to tim duncan.

TIFU by not knowing what a basketball player looks like.