Shit. That's pretty fucked up.
Indeed, its self enforced though and only happens in small rural towns. I walked into a pub in a tough bush town called Moree and noticed that there wasnt any tables or chairs just a ledge around the wall to place your beer in.
Barman looks at me like he has seen a ghost, I had a newspaper in hand and he looked at it like he'd never seen one before.
He says 'Ahhhhhhhhh maaaaaaaaaaaaaaaaaaate I know if you want to be in here" I reply that I want a beer so its good a place as any.
He pours my beer and tells me I should drink it and leave as its pension day. I leave and get to my appointment and tell the client what happened and he lols and says "mate you went to the Abo pub" (his words not mine) "You would have got your head caved in as soon as they got there"
Im the colour of Wesley Snipes' asshole FFS and could only drink in the white pub in that town hahaha