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 !
They also don't know what the little handle is for either.
All the Port-a-potties on rig sites have a 5 gallon bucket next to the toilet.