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 my roommate and i enjoy watching sitcoms on netflix; the league, etc.... we were watching an episode of how i met your mother about how robin and marshall share a toothbrush. ted then realizes that for a whole semester he accidently shared brushes with them. this prompted my roommate to remark that he was glad he had an extra toothbrush, his backup incase he had female company over that required a freshen-up. his backup toothbrush was only the second toothbrush in the bathroom, he assumed i kept mine in my room, as our bathroom storage space is limited. i used to have the exact same toothrbrush, green handle, blue and white bristles. after i quick check in my extras drawer, i learned that i must have forgotten to unpack my toothbrush, and i had assumed for the longevity of my residence that it was, in fact, my toothbrush. ahhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

TIFU with my roommate by watching an Episode of how I met your mother