Once upon a time a boy was passing along the road then he saw a restaurant with a sign-board written, ’Your grand father has paid for you.’ Next the boy quickly entered the shop and started ordering different kinds of food. After he finished then the Steward told him, ’Mr. Man your bill is $100.

BOY: I thought my grandpa has paid for it.

STAWARD: That is why you have to pay for your grand son.