A young man was walking through a supermarket. Suddenly he noticed that he followed by an old lady.
When he went to the checkout line, she got in front of him.
"Pardon me," she said, "I'm sorry if I made you feel uncomfortable. It's just that you look exactly like my son whom I did not see for about 10 years."
"I'm very sorry," replied the young man, "Is there anything I can do for you?" "Yes," she said. "As I'm leaving, can you say 'Goodbye mother'? It would make me feel much good."
"Sure," answered the young man.
As the old woman was leaving, he called out, "Goodbye mother!" As he stepped up to the checkout counter, he saw that his total was $$127.50. "How can that be?" he asked,
"I only bought a few things!" "Your mother said that you paid for her," said the clerk.