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 happened in 7th grade while my class was watching a movie called "the book thief". my teacher had just left the classroom to photocopy some things so we were alone. while our teacher was gone, a scene where people were doing the nazi salute showed up and as a joke i did the nazi salute too. soon after a bunch of people near me did the same thing for some reason and a few minutes later my teacher walks into a room full of kids saluting hitler, i swear it looked pretty much like that video of hitler screaming "sieg heil". anyways, she started to give us a lecture of "how terrible that was and we're lucky that she isn't sending all of us to the 
principals office"

TIFU by causing half the boys in my grade to do the nazi salute while watching a WW2 movie