When victimized by food poisoning, one needs to put a vomit bucket in front of them while sitting on the toilet, not knowing from which end the next "issuance" (diarrhea or vomiting) will happen, or fear that the thrust from throwing up will cause diarrhea or vice versa.
"After some bad swordfish, I was sitting and playing sphincter roulette in the bathroom for most of the night."
by SJPUNOME, The Grand Pilubah February 25, 2015