Another barber joke:
One day, a man popped by a barber shop. Seeing that the barber was
busy, he asked, "How long before I can get my hair cut?" "Two
hours," the barber replied quickly. Hearing this, the man went off
on the road.
A few days later, the man dropped by and asked the barber the same
question again. "Two hours," the barber replied without passing a
glance. The man left promptly.
This happened again and again for the next few months. Until one
day, when the man got back on the road, the barber turned to his
friend, "Hey Jim, follow that man and see where he's going."
An hour later, Jim came back to the barber shop, laughing. "He went
to your house."