If I may explain why this is a bad idea from someone who tired it. Part of why shit does not stink in a toilet is because it is submerged in the water. By AC Slatering it on a toilet your asshole is above the front of the bowl so the shit is not submerged. The stench rises. And because of the way you are positions there is a gap between your chest and the tank. This leaves an opening in the toilet allowing the stench to be trapped in a column which rises directly to your nose. No way to escape it while you are in mid shit. A horrific affair.