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: this actually did happen today. so i'm under 17 years old...by 5 days. and i was gonna see deadpool, which is obviously rated r, but i was going to go with friends. however, i was late for the movie when i arrived, so my friends who had gone w/ one of their dads weren't there. i had my ticket which my mum had bought earlier, but they wouldn't let me in unless i had my id with me. that's fine, i'll just get my mum to show hers to get me in. but nope- the guy won't allow me in unless she buys a ticket and goes in with me (and she doesn't want to waste the money, cuz deadpool isn't exactly her type of movie). k, so i try contacting one of my friends inside the theater to get me in, but their phones are off (cuz of the whole "shut your phones off" policy. so the guy suggests refunding the ticket or getting a pass for another movie, or ask for help at the guest service counter. the guy behind the counter says that maybe one of the guys can usher me in , and then i can get my friend's dad to vouche for me. so we go in, and i ask one of my friends whose dad had come to get his dad...
only, his dad had left earlier after getting them all in the movie. but the usher couldn't let me stay, so he ushered me out, cuz it's company policy or something, and i left, embarrassed in front of my friends. and i could have gone in if i was there just a few minutes earlier.

TIFU because I was late for Deadpool