The inconsistent, unpredictable quality of the shitting experience at roadside gas stations and highway rest stops.

Every person will encounter a broad spectrum in their lifetime, from the sparkling clean place that smells good, to the dark, musty smelling place with a pair of shitty underwear on the floor, a few gay sex propositions scribbled on the wall and a paper towel dispenser that hasn't been refilled since the Reagan administration.

The outdoor appearance of the building doesn't always reflect what the restroom will look like. Even if a bathroom has a good reputation, that can all change with one truck driver in a matter of seconds. It's 100% unpredictable, it's shit-or-miss.