A guy stuck his head into a barbershop

A guy stuck his head into a barbershop and asked:

“How long before I can get a haircut?”.

The barber looked around the shop full of customers and said:

“About 2 hours.” The guy left.

A few days later the same guy stuck his head in the door and asked:

“How long before I can get a haircut?”.

The barber looked around at the shop and said:

“About 3 hours.” The guy left.

A week later the same elderly guy stuck his head in the shop and asked:

“How long before I can get a haircut?”

The barber looked around the shop and said: “About an hour only.”

The old guy left.

The barber turned to a friend and said:

“Hey, Bill, do me a favour.

Follow that old guy and see where he goes.

He keeps asking how long he has to wait for a haircut, but then he doesn’t ever come back”.

A little while later, Bill returned to the shop, laughing hysterically.

The barber asked: “So where does that guy go when he leaves?”

Bill looked up, tears in his eyes and said: “To your wife!”