I have not. I've smoked since I was 12, and I drink extreme amounts of coffee. Both of which cause the booty bad times.
I never gamble on farts.
That and when I was... 16? I was a party and some guy got really drunk, went to fart, and fucked his pants. He ended up switching schools because of how mercilessly he was mocked. Fuck that, I'd rather be uncomfortable for a while because I need to fart.
Edit: I've had a couple close calls with the flu though. I'm an extremely violent vomiter, so my body tends to convulse while I throw up. I did have my ass lift off the seat while I was face deep in a trash can. Had to throw the toilet seat away, because it was one of those padded ones and I didn't trust bleach to fully clean it.
FFRK: BRKB - Eiko - Guardian Mog
FFBE: 885,063,087 - Orlandeau - 931 ATK