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: we were in the kitchen after dinner, standing around talking, when i picked up a sliver of onion. i then took the knife that was used to slice them and started hacking off bits of it out of boredom.

"you're gonna cut your finger like that," she said. i laughed at this, still cutting away, thinking that was stupid. it's some crappy kitchen knife, it's probably dull too, and i'm not so stupid that i would--

some onion juice seeped in and now it burns :/

TIFU by not listening to my sister.