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: obligatory: this happened dec. 28 2015

went to crested butte, colorado for winter break. i thought i was still as good at skiing as i was the last time i went a few years earlier. i used to ski blacks and loved the terrain park. mom tells me not to get hurt, so does friends mom who brought us. we go on a few greens so i go fast. one has a little hills which i jump off of. first one goes great, second i try and turn a little before i go off it. bad idea. my skis get tangled and i tumble. i get up and feel nothing but a bruised hip. my friend checks to see if i'm ok and finds what looks like someones cheek on the ground. check my cheek but it's still there, then i remember my hip. turns out my ski cut through my ski pants and long jons underneath and proceeded to slice off a chuck of my hip. i spend the rest of the day in the mountain er while they cut the "hole" in a football shape to sow it up under local anesthesia.

this is the day i learned i wasn't invincible.

proof: nsfw http://imgur.com/a/btwgv

 
edit: date

TIFU by thinking I was still good at skiing