Surely more people would call the Gambling Addicts Helpline if they made every 10th caller a winner !
Little John kept disrupting his class by regularly letting out loud farts, so his teacher kept him after school. When she insisted on knowing why he exhibited such offensive behaviour, he said, "I do it because I can do it better than anybody, and I'm very proud of that fact." The teacher says, "If I show you that I can do it better than you, will you stop?" Little John agreed and the teacher placed two pieces of paper on the floor with identical piles of chalk dust on each one. John dropped his pants, squatted, farted, and blew all but a tiny little speck of dust off the paper. The teacher dropped her panties, lifted her skirt, and did likewise, but when she was finished there was not a trace of chalk dust left on the paper. John was astonished and asked if he could see her do it again. She was willing and as she repeated the process, John peeked up underneath her skirt. "No wonder you won!" he exclaimed indignantly, "You've got a double-barrel !"