Bouncer Syndrome

When a masculine bouncer, bartender or ID check guy gets a little too absorbed in his power as gatekeeper. He'll refer to male customers mildly condescendingly as "buddy," and is overly eager to kick people out of the establishment, not necessarily for causing a scene in the bar so much as challenging his dominance.

Non-bouncers express bouncer syndrome when they try to break up other peoples' fights in bars or parties, usually when drunk.