>tfw I actually did include the Whizzard and his enchanted piss forest in a campaign I ran
The players had just gotten blindsided by a group of witches who had ordered some ale from the nearby town that the players were tasked to deliver to the witches, and the witches decided they didn't want to pay for it so they threw some hallucinogenic dust in their faces and tried to bail. Everyone but the fighter and the cleric passed their Will save, so the others started fighting the witches while the fighter and cleric started freaking out.
The fighter was the one who got the Whizzard hallucinations, he chose to try and kill the Whizzard and ended up running face first into a tree.
I probably didn't have to do it but I figured I'd never get another opportunity to pull something so silly.