A man walks into a bar.

He sees that there's no barman.

Confused, he turns to the guy sitting there.

"Um, sir, are you the barman?"

The guy looks over at the customer and stares.

Without saying a word, he slowly pulls a lever and smirks.

"...Don't ask about the barman."

The man is flabbergasted. He stands in silence for a moment as the punchline sinks in.