How long before I can get a haircut?

A shady-looking guy sticks his head into a barbershop and asks, “How long before I can get a haircut?”

The barber looks around the shop and says, “About two hours.” The guy smiles and leaves.

The barber is curious about this, looks over a ¬†friend in the shop and says, “Hey, Bill, follow that guy and see where he goes.” In a little while, Bill comes back into the shop.

“Bill, where did he go when he left here?”

“To your house.”