Our high school was in an 'L' shape, with the gym jutting out off the side of the high school. The backdoor of the boys locker room opened up to a grassy area where all the classrooms on the back of the school had windows looking out over it.
One day in gym class, a friend of mine dared me to take all of this dude's cloths expect his underwear and chuck them out that backdoor. In January. Long story short, that kid had to walk out into that grassy, snow-covered area in his underwear for anyone who cared to look out the window during class to see. I don't know that he knew I did it, but I'm shocked I never got in trouble for that.
You ever have that weird flashback that fills you with regret? Luckily, that's one of my bigger ones.