|A youngster rushed into a barber's shop and asked to be given a haircut and a shave immediately.|
"You wait your turn young man," said the barber, "I will get to you after the others waiting before you have been attended to. It will take an hour or two."
The young fellow ran out of the barber's shop. He came the next day, the day after and for many days subsequently. Every time he was told to wait his turn, he fled.
Not being able to contain his curiosity, the barber asked his assistant to follow the young man and find out where he came from and where he went after leaving his shop.
The assistant did so and reported back, "I don't know where the fellow comes from but as soon as you tell him you will be busy for the next hour or two, he runs to your home."