Years and years ago before 4chan I saw this video of a Japanese man bound in rubber and latex, strapped to a floor with a hose stuck in his mouth. That hose was connected to a toilet. A woman in dominatrix gear sat on the toilet and took a mighty diarrhea shit that was funneled down into the guy's mouth and forced to swallow it all. He gagging sounds were horrific, and while this was going on she was placing pressure on his cock n balls with high heels.