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: actually this happened last semester but whatever.
it was before the classes started that day. there were fewer kids present as it was the day before the final exams were going to start. my friend was the only one in his class.

so i decided to walk in, a few others following me. we talked a while, then for some reason i decided all the decorations were useless as the year was ending anyway. we had already taken them down in our class, so i proceded to do the same there. i toke down all the charts, paper curtains e.t.c. (i did not think i was doing something wrong here)
         my friend did not mind. but as i walked out of the class (because his teacher had come in) she immediately asked the guy who had done it. he then said i did(traitor). at first i tried to blame someone else, but in the end she caught me. 
           it was soooooo embarassing. she made me pick up everything. when my friend tried to help, she told him not to. he just sat there, laughing. then some other teachers came in aswell and begun talking about what a bad student i was,

TIFU by trashing my friend's class