Hi
A guy stuck his head into a barber shop and asked, "How long before I can get a haircut"?, the barber looked around the shop full of customers and said "about two 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 reply "about three hours", the guy left.

A week later the same guy asked the same question, the reply "about an hour and half" the guy left.

The barber turned to a friend and said "Hey Bill, do me a favour, follow that guy and see where he goes, he keeps asking how long he has to wait for a haircut but he never returns".

A short time later, Bill returns laughing hysterically, the barber asks, " So where does he go when he leaves"? Bill looks up tears in his eyes and said "Your house"