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.
Example: Text: title speaks for itself really... 
i just wasted $1500 of my parents' money.
i feel terrible.

edit: i guess it wasn't that i took the wrong class, but the class i was taking wouldn't transfer credits over to my university. so really it was my negligence to do more research in the matter. gg
Example solution: TIFU by taking the wrong class for 2 weeks and only realizing it today
Example explanation: This title is appropriate for the given text post because the focus of this post is about a humorous situation caused by "taking the wrong class".

Problem: Text: so this happened a few years back, i was about 16 and my cousins were in town for the week. we decided to go fishing off some old abandoned railroad tracks and asked my 13 year old sister if she wanted to tag along. now being a teenager in the age of computers, she said she'd rather stay home and browse the internet, and that pissed me off because how often do we get to see our cousins that came from the other side of the country? well fastfoward a few hours, we were walking back to my house because i had to poop bad. i was talking to my older cousin and he convinved me that i should teach her a lesson so i decided to scare her, here's what my plan was: our computer sat right in front of a window, i would sneak behind the house and slap my hands on the glass and freak her out. here's where i messed up. i snuck up to the window waited until i saw my cousin walk through the front door then i slapped the glass as hard as i could.  crashhhhhhhhhh, it shattered all over me and a piece of glass got stuck a half inch from my eye, and i shit myself reddit, the glass shattering literally scared the shit out of me. i pulled the glass out of my face and was squirting blood like a fountain. now i had blood all over me, poop in my underwear, and had to go to the er. needless to say though, i succeeded my mission and scared the living hell out of her.

Solution: Tifu by scaring my sister