A hungry young man was walking along the street and noticed a sign post over the roof of a restaurant with the inscription:
‘FOOD IS READY. COME IN, EAT AND HAVE YOUR GRANDCHILDREN PAY YOUR BILLS.’
Gladdened, the young man walked in, sat down and ate as much as his tummy could carry. Then, he was set out to go.
The waitress walked up to him and handed him an enormous bill to pay. The young man became bewildered but didn’t say a word, rather, pointed at the sign post to refresh her memory of the inscription on it.
The lady then said, “Yes, the inscription is true but right now, you are not paying for your own bills but that of your grandfather’s.”
The young man, fainted.