I once worked as a traffic warden on a council car park, and selfishly parked cars were the bane of my life. Funny enough, it's always the ones who've knowingly blocked three other cars in who go off like a rocket when they're asked to move.

Then of course there's the 100% fit scumbags who park in disabled bays when they've got no right to, thus causing untold inconvenience to the genuinely disabled. By 'eck, did I love issuing illegal parking tickets to those bastards. And didn't I just relish the slanging match when they came steaming after me demanding I take the ticket back.