A guy sticks 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 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 guy stuck his head in the shop a and asked, "How  long before I can get a haircut?" The barber looked around the shop and said, "About an hour and half." The guy left.

The barber turned to a friend and said, "Hey Bill, do me a favor. Follow that 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, "Your house