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 was on halloween and just never got around to posting it because of how big of a dick i felt like. however, every halloween my roommate and i host a big halloween party and give away prizes for the scariest costumes for guys and girls. 

well some friends of my roommate come over and i've never seen them before so whatever, we are all having a good time, there's like 75 people here. well it comes time to judge the costume contests. i would pick the female winner and my friend the male winner. 

one of his friends that came over was dressed in an epic witch costume and i thought that she had went out and got a makeup artist to put effects on her face to make her skin look terrible like she was a dead witch. little did i know, it was just her incredibly bad acne. i picked her as the winner of the contest to try and not be biased to any of my female friends and when i announced her as the winner i said "girl a is the winner with her incredibly awesome witch costume and her over the top leprosy looking skin makeup effect!" 

my roommate just turned to me horrified and i looked back at her with her mouth just kind of open in shock staring at me...everyone was really quiet. it was horrible.

TIFU by assuming a girls acne was part of a costume.