This incredibly obnoxious dude in our group - a coworker of the DM that nobody really knew - kept rolling to slap people with his dick. He would make a big deal of announcing it and then rolling for non-lethal damage and he thought it was the funniest thing ever. Well when he announced a transphobic attack on my character, I rolled a reflex save. Natural fucking 20. I grabbed the dude's dick in midair and stuck it to the table with a fork. I made him give me his healing items and then I told him the next time he takes it out I'm keeping it.

That campaign fell apart pretty quickly after that due to player infighting.