Barber Shop

A guy sticks his head into a barber shop and asks :
- How long before I 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 shop full of customers and says :
- About 3 hours.
The guy leaves.
A week later the same guy sticks his head in 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, John, 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, John comes back into the shop, laughing hysterically.
The barber asks :
- John, where did he go when he left here ?
John looks up, tears in his eyes and says :
- Your house!