Mrs. Harris lives in a small village. Her husband has passed away, and she has one son named Geoff, who is twenty-one. Geoff used to work in the village shop and live with his mother, but he later found a job in a town called Greensea and moved there. Greensea is quite far from his mother's village, which made Mrs. Harris unhappy. However, Geoff reassured her, saying, "There aren't any good job opportunities for me in the countryside, Mother. I can earn much more in Greensea and will send you money every week."
Last Sunday, Mrs. Harris became very upset. She took a train to her son's house in Greensea and confronted him: "Geoff, why don't you ever phone me?"
Geoff laughed and replied, "But, Mother, you don't have a phone."
"No," she answered, "I don't, but YOU have one!"