A man walks into the front door of a bar.
He is obviously drunk and staggers up to the bar, seats himself on a stool and, with a belch, asks the bartender for a drink.
The bartender politely informs the man that it appears he has already had plenty to drink and that he could not be served additional liquor.
The bartender offers to call a cab for him.
The drunk is briefly surprised, then softly scoffs, grumbles, climbs down from the bar stool and staggers out the front door.
A few minutes later, the same drunk stumbles in the side door of the bar.
He wobbles up to the bar and hollers for a drink.
The bartender comes over and still politely if not more firmly refuses service to the man and again offers to call a cab.
The drunk looks at the bartender for a moment angrily, curses, and shows himself out the side door, all the while grumbling and shaking his head.
A few minutes later, the same drunk bursts in through the back door of the bar.
He plops himself up on a bar stool, gathers his wits, and belligerently orders a drink.
The bartender comes over and emphatically reminds the man that he is drunk and will be served no drinks.
He then tells him that he can either call a cab or the police immediately.
The surprised drunk looks at the bartender and in hopeless anguish cries, “Man! How many bars do you work at?”