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: *this did happen today. i am using a throwaway*

this summer, i am taking a chemistry class that is composed of about 15 girls and 5 guys (me being one of them). this after noon, we were setting up a lab; the way our lab tables are, there are four seats, two on one side and two across the table. my lab partner (a guy) and i set up our lab, while the two girls across from us set up their own. 

this is the good stuff now. we were all talking about movies when someone brought up the fifty shades of grey movie. i have never seen the movie or read the book, but from what i know, there are some bdsm scenes. well, one of the girls said she had only seen the movie, while the other one said she had read the book and seen the movie. when i heard this, i casually leaned over to my lab partner and said in a sarcastic voice, "umm, that's hot." my lab partner looks over and smirks, while the girls thought i was being serious. within five minutes, what was meant to be a poor excuse for a joke is now being spun into a tale of my bdsm fetish (nothing against it, just not my thing). now all the guys crack jokes about it, and the girls think i'm crazy.

i will now long in my mistake...

TIFU by getting my friends to think I have a BDSM fetish