An anxious father said to his son's school principal: "I want you to stop my son gambling. All he ever seems to want to do all day is bet, bet, bet." "Leave it to me," said the principal. A week later, the principal phoned the father and said: "I think I've cured him." "How?" asked the father. "Well, I saw him looking at my beard and then he said, 'I bet that's a false beard.' 'How much do you want to bet on it?' I asked him. And he said, 'Five dollars.'" "What happened?" asked the father. "Well, he tugged my beard, which is perfectly real, and I made him give me the five dollars. I'm sure that's taught him a lesson and he won't be gambling any more." "I wouldn't be so sure," said the father. "He bet me ten dollars this morning that he'd pull your beard with your permission by the end of the week!" Did you hear about the young gambler who bet his girlfriend that she wouldn't marry him? She not only called his bluff but she raised him five.