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.
Q: Text: now, this didn't happen today, but last year. it was one of my very first cooking classes (year 8, 8th grade for all you yanks out there), and i was getting something from a cupboard. i went to close the cupboard, and something was jamming it. so i pushed it harder, to no avail. i went to see what was jamming it, so i turned my head, only to see the girl i have had a crush on for ages, her arm in the door. i felt like the biggest asshole then, and i have never been able to forgive myself, although she's probably forgiven and forgot by now.
A: 
TIFU by slamming my crush's arm in a door.