My DM was chill, semi-generous, and ran a generally non-serious game. So, the tiefling druid made a magic item during downtime called the furry rod, he turned my halfling rogue into a furry. My halfling rogue proceeded to make a roll to kick the druid in the balls. It was a nat 20. And the DM made an on-the-fly ruling that, if a nat 20 is rolled to kick someone else in the balls (yes, that is strange), the furry rod's effect is transferred over to the target. I did warn you, this campaign was not serious in the slightest, I mean, part of it took place in a place called Daerun (a Detroit-Faerun hybrid). That was funny.