There are toilets on overseas oil rigs that are used especially for certain divers who need to sit in a depressurised room after a dive for 3 days because of the exces nitrogen in their bodies, they have a special toilet that when flushed creates a massive powerful vacuum that sucks whatever was in the toilet out with no mess whatsoever (it even tears off stains!) Of course, one certain diver was feeling particularily ill at the time, and pressed the several levers needed to flush it whilst still siting down, this resulted in him being stuck to the seat and his insides being pulled out through his body, killing him instantly. Try pissing in that toilet!