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 happened back in 2010 when i was with a friend, it was the summer and we where both 12 years old. we both had passes to the local swimming pool. one day we are both getting changed in separate changing rooms, we would always grab 2 disabled one's because there was more space, friend gets changed really fast and has left his changing room. i didn't hear and didn't realise that a mentally retarded man had gone in the changing cubical he had just been in. during this he started to make loud moaning sounds, to which i thought it was my friend doing, so being immature 12 year old i was, i started to make them back thinking it was him, did it for about 3-4 minutes when i finally left the changing cubical i walked out to be greeted by friend wetting himself laughing about how he wasn't in the cubical and it was someone who was actually ill.

TIFU by accidentally picking on someone with mental retardation