No one washes their hands after they piss unless they’re in a public place. If I’m at the airport, or a restaurant, and someone else is there, I’ll soap up for the sake of civilization, but it’s only for show, I don’t really care if I have ultraviolet traces of urine or feces on my hands. But, if I see someone walk oudda the men’s without soaping up I’ll think he’s deranged, borderline psychotic. At least pretend that washing your hands matters. You know, for the sake of civilization.