Tommy 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." So Tommy leaves.

A few days later Tommy 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." So Tommy leaves.

A week later Tommy 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 a half."

Again Tommy leaves. The barber, who is curious about Tommy's antics, looks over at a friend in the shop and says, "Hey, Mick. Follow that guy and see where he goes."

A little while later, Mick comes back into the shop, laughing hysterically.

The barber demands, "Mick, where did he go when he left here?"

Mick looks up, tears in his eyes and says, "Your house!"