A man walks into the front door of a bar. He is obviously drunk. He staggers up to the counter, sits on a stool, and with a belch, asks the bartender for a drink.
The bartender politely informs him that he has clearly had enough and cannot be served any more alcohol, but offers to call him a cab.
The drunk looks surprised, scoffs, grumbles, climbs down, and staggers out the front door.
A few minutes later, the same drunk stumbles in through the side door. He wobbles up to the bar and loudly orders a drink. The bartender, still polite but firmer this time, refuses again and offers to call him a cab.
The drunk glares at him, curses, and leaves through the side door, shaking his head.
A few minutes later, the same drunk bursts in through the back door. He plops onto a stool, gathers himself, and angrily demands a drink.
The bartender now firmly tells him he will not be served and that either a cab or the police will be called.
The drunk stares at him in confusion and cries out,
“Man! How many bars do you work at?!“