One morning a London boy was sitting in the bus on his way to school. He was sniffing all the time and making noises with his nose that the other people in the bus began to shake their heads.
At last an old man who was sitting next to him said, “Little boy, have you got a handkerchief?”
“Yes, I’ve got a clean handkerchief in my pocket,” said the boy. “But I can’t let you have it. Mother says it’s not polite to ask anybody for a handkerchief You must use your own.”