I don't have any stories like that, but I can relate to you one that was recently told to me by my sister. Note that all spellings of the names are wild guesses.

Righto, so my sister is playing that Rizzo chick in the school musical Grease. One day during practice, when they're working on their dance moves, my friend's little brother, the guy playing Kiniki, jumps up to do splits in the air, whatever that's called, and his pants split and everyone sees his boxers.

Now, the funny part is what his boxers say. They're silk with a heart on the but with a lightning bolt through it and they say Rizzo on 'em. I think my friend's parents were poking fun at the guy when they bought him those boxers, but I still have to wonder: why the crap did he choose to wear them?