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 a few weeks ago, and i just remembered to post it. 

so, i'm in my high schools jazz band and every year we preform at an arts festival at a town near us. in our band, we have one couple who are pretty open about their relationship. 
after out performance, we were all hanging out outside eating street vendor food and talking or whatever, while the couple is eating each others faces out. our band director is no where to be seen, so me and two of my friends decide to screw with the couple. 
this is where we fucked up. to get the couple to stop eating their faces out, we got some pennies and threw them at them, lightly. we had no intentions to hurt them. 
supposedly, the girl in the couple thought we were calling her a prostitute by throwing pennies at her, so the next day we get called into our assistant principals office. we get a lecture on how not to be sexual predators, and how if this happened in a workplace we'd all be fired and labeled as predators. we all also got a detention.

TIFU by throwing pennies.