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: so, when i was about 7 or 8 years old i went to the supermarket with my mum and little sister after school. my sister needed to use the toilet so my mum and i were waiting outside the women's bathroom for her. i had the great idea of standing next to the door and jumping out to scare her as she came out. well, the door opened and i jumped sideways with my arms flailing and screaming 'raargh'. next thing i know there's a big commotion and a group of people surrounding the unexpecting victim of my attack laying on the floor. turns out my sister was still in the toilet and i'd just scared the life out of an old lady. somehow her walking stick ended up sliding 20 feet down the hall. thankfully the lady turned out to be okay, but my mum was pretty ticked off and sent me to go sit down and wait for her and my sister.

i go outside to find a place to wait and find this cozy little spot on a ledge between a shop window and some scaffolding on the outside of a building under construction. i don't know how or why the fuck i got between the window and scaffolding but i ended up getting my shoulders stuck. after thirty minutes and multiple failed efforts of several strangers the fire brigade had to come and rescue me. they lifted me up and over the scaffolding using some miniature crane thing with a harness. i just remember slowly coming over the top of the pole and looking down at a crowd of twenty or so smirking faces, including that of the frightened old lady and her husband.

TIFU by scaring a stranger and getting stuck