Men never flush urinals. Our company had to install automatic flush valves because the men's rooms smelled like unmaintained outhouses in August.
Lye worrks good for the tough jobs.
Correction: uncivilized, slovenly men never flush urinals.
Here in Houston, there's a larger problem with Mexican toilet habits.
After going number two and performing the requisite cleanup, many of the guys refuse to flush the paper. Either it goes into a wastebasket beside the toilet, or it goes on the floor beside the toilet.
Either way - eeeeeeeewwwwwwwwwww !