What's the dumbest, and/or funniest, thing someone has done, or tried to do, in a campaign you were in (as DM or player)?

I'll start: Barbarian party-member attempted to light fire to the powder magazine of a flying ship, while it was over a city, with the rest of the party on board.

The warlock party member cast light in the presence of a green slaad to try to find a way out of the maze they were in, after the green slaad's turn in which it cast detect magic. The party was level 4 and were hiding. They then died lol

As a barbarian I lit myself on fire using goblin feces. While also swinging a dead goblin I had also lit on fire. This actually worked, because I got a nat 20 on my con save. Sadly I failed to intimidate the goblins. But gladly I succeeded in slamming basically any goblin that got close. We are actually playing right now and I'm gonna start throwing flaming feces, cause my goblin wrapped up two others.

"IM ON FIRE!!!!"

My druid character started arguments with some random hunters, now I have to give them the pelt of a dire wolf.