A Wise Man’s Jokes   A wise man once encountered a gathering of people who kept harping on the same problems. One day, he told them a joke instead of listening to their complaints, and everyone burst out laughing. Then he said the joke once more. Several folks grinned. The man then told the joke a third time, but nobody responded. You won't laugh at the same joke more than once, the man remarked with a smile. What are you hoping to gain by making the same complaint over and over again?   The Moral: If you continually whining about