[user104658]

Originally Posted by Oliver_W

My mum works in a bookies, she says if someone looks like they're a druggy or "was gonna leave a hideous shitty mess" she won't give them the key

Those are indeed the two main reasons to deny toilet usage. If you think they're going to shoot up (and probably leave needles behind ) or if you think they're going to inexplicably get **** all over everything. We had it in the sink... HANDPRINTS up the walls... one time a pair of boxers absolutely caked in it left splatted in the corner...

Sometimes these days, when I'm sat working from home in my cushy 3rd sector Web-based job, but feeling a bit bored and missing the laughs and interaction... I have to remind myself of toilet cisterns full of rusty needles and drunks trying to kick in the windows. That usually nips any nostalgia in the bud.