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 just in case you guys are wondering,i live in the united arab emirates,which is an islamic country with islamic law(duh) and i attend at a school with really strict rules. and i did something that pissed everyone off ...so we have this touch screen that a pc is connected to,it works and function like your typical windows tablet.when everyone left the class i thought it was a pretty good idea to make everyone in my class go "holy shit",i googled "the most offensive flag ever" and downloaded that jewish,homosexual sawastika flag and set it as the wallpaper. i didn't think much of it and left. 
this is where the shitstorm begins,so the next day i arrive at my class and witness the teacher going ape shit over the background picture. she called the principal to check the surveillance camera to see who changed the background,the principal said that he will. fast forward to the fourth period and i hear my name being called through the speakers,this is where i knew i fucked up. so i arrive at the principals office and got shouted at for 5 minutes. he called my parents and gave me a warning letter...

TIFU by changing the wallpaper of my classroom computer.