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: my little brother recently started dating a very nice girl who we all love. being the jack ass older sister that i am, i decided to scare them. it wasn't going to be anything bad. they were out on a date and i was going to hide behind his bedroom door with a balloon from my birthday, suck in the helium, and yell something funny when they came home. 

but i didn't feel good most of the day today. in fact, i felt pretty sick. but the show must go on!

when they pulled into the driveway, i hid in his dark room with my balloon, still feeling pretty sick. they got to the door, i sucked in the helium, they opened the door and flicked on the lights, i yelled, "nnnoooooo the liggghhhtttt" in my helium high voice annnnddddd threw up. every where. i scared them, but not in the way i intended. in fact i think they were more concerned with my well being than anything. 

i started to cry cause i felt so bad for what just happened. our dad walked into the room cause he heard a commotion, saw everything, and patted her on the back and said, "welcome to the family." he literally just started dating her so i'm sure i scarred her for life in some way.

TIFU By intentionally/unintentionally scaring the hell out of my brother and his girlfriend