A guy sticks his round the door of the barber's shop and asks, "How long for a haircut?"

The barber replies, "About two hours."

The guy leaves.

A day or two later, the same guy sticks his round the door and asks, "How long for a haircut?"

"About an hour and a half." replies the barber.

The guy doesn't wait and leaves.

The next day, the same guy asks the same question and the barber answers, "Probably about two hours."

When the guy leaves, the barber asks one of his customers, "Do me a favour, go out after that guy and see what he is up to."

About five minutes later the customer returns and laughing, he says, "He's just gone round to your house".

Funny .