One of my flatmates didn't flush after taking a dump. Even worse, there was no toilet paper in the bowl... which means one my flatmates now has an unwiped ass.
I think it bears mentioning that every once in a while I'm pretty darn sure that my poop came out cleanly. Maybe Mr. T's flatmate just has similarly good judgement.
Yeah, but how can you CONFIRM that without at least a test wipe? Come on now.