A man walks into a bar and sits down, and orders a drink. Bartender says, “I’m sorry sir, you already seem very drunk, I cannot serve you.”

Guy gets up and leaves.

A few minutes later, he comes in again, sits down at the bar and tries ordering another drink.

“I’m sorry sir, but I cannot serve you because you already seem drunk. Please leave.”

Guy gets up, grunts and wanders off again through the same exit.

Another few minutes goes by and the same guy comes back in, sits down and tries to order yet another drink.

“SIR, I’VE ALREADY TOLD YOU NOW TWICE THAT YOU’RE TOO DRUNK AND I CANNOT SERVE YOU.”

Dude looks at the bartender all surprised and slurs:

“How many bars do you work at?!!!”