I was DMing my son and a couple of his friends thru a Dungeon mag adventure. They run all over the mountain, looking for the goblins. Eventually, having covered almost every part of the mountain, they reach the plaque commemorating the long dead goblin cleric that leapt off the cliff. I'm reading the section of the adventure, making sure I'm not forgetting anything. I get to the part about the juvenile dire bat in the cave at the bottom of the cliff and think "they're never going there, and they'll never provoke it, so no problem," when one of the PCs yells out (I mean yells...) "Hey! It's been 6 days on this mountain, and we never went to the bathroom once!"
My jaw drops, as 3 teenagers exchange ridiculous scatologic jokes and boasts (yes, who can poo the farthest...). I've never had PCs go to the bathroom in 25 years of gaming. I'm completely unprepared. But I roll the attitude die to see how the dire bat takes it (he's angry). Soooooo... junior dire bat attacks half naked PCs! Bites the monk in the butt. Wins initiative, bites the cleric in the butt, taking him to 1 hp. Monk spends turn pulling up drawers, cleric runs. Fighter clobbers the dire bat.
Cleric player, marking off a CLW, deadpans, "he ripped me a new a******."
PS