I was initially a little disturbed by this; but following on from the peeing in the shower thread, if you think about it, it doesn’t really matter does it? When you wash your hands in any public facility, you surely NEVER actually touch the porcelain, surely? Now THAT would be a minging habit. It’s: tap on, soap on rub and rinse under the flow, tap off, dry and retire, surely?
My feeling is that, whilst err, unusual, this habit actually carries far less risk of sharing other people’s urine than the apparently masculine and completely socially acceptable habit of standing up to pee in a receptacle designed to be sat on.
All of the above depends on the ability to think logically and dispassionately when it comes to bodily functions however, something that a large proportion of the population seem unable to do.