A guy sticks his head into a barber shop and asks, "How long...

A guy sticks his head into a barber shop and asks, "How long before
> can get a haircut?" The barber looks around the shop and says,
>
> "About 2 hours. " The guy leaves.
>
> A few days later the same guy sticks his head in the door and asks,
> "How long before I can get a haircut?" The barber looks around at the
> shop full of customers and says, "About 3 hours." The guy leaves.
>
> A week later the same guy sticks his head into the shop and asks, "How

> long before I can get a haircut?" The barber looks around the shop and

> says, "About an hour and half." The guy leaves. The barber looks over
> at a friend in the shop and says, "Hey, Bill, follow that guy and see
> where he goes. He keeps asking how long he has to wait for a haircut,
> but then doesn't come back.
>
> " A little while later, Bill comes back into the shop, laughing
> hysterically.
>
> The barber asks, "Bill, where did he go when he left here?"
>
> Bill looks up, tears in his eyes and says,
> "Your house!"