I go to a school that strictly prohibits cursing. I also am a couple grades back, and almost every boy in my class uses them.
One time I shouted "OH MY loving GOSH" in the bathroom, and yes I quote myself saying those exact words.
Then, surprise surprise, my (female) music teacher knocks on the door rapidly and brings everyone in the bathroom out and says "Who said the bad word?" I pointed at myself and I got sent to the headmaster's office.
Remarkably enough, I only got an F in my conduct - 50.
Also, someone in the front of my class shouted (and I was in the back, and it hurt too) "FU-!"
He said he stopped short saying 'what'. Everyone giggled and somehow my teacher didn't bark at him. o_o