Anyone reading this and doesn't know: bleach and quantity ammonium compounds or other amine-containing compounds (urea) can create chloramine gas (which is just as bad as chlorine gas (it technically does make chlorine gas, but reacts with amines to make chloramine gas). Which is deadly in enclosed places in sufficient concentration. Not sure how much would be made with urine, but ammonia and bleach mixing has killed people (and still does)
Moral of the story: don't mix cleaners unless you know exactly what you're doing.
also everyone thinks this is a good idea imagining it at their penises height, ignoring the fact that human heights vary a TON and having a piss spot where short people can access and tall people can wash hands is impossible