A man went to a doctor for a medical exam. After examining the man, the doctor proclaimed, “You’re in pretty good shape for a man of fifty.” “Did I say I was fifty?” the man replied. “I’m nearly sixty. Shell collecting keeps me fit and healthy. I do a lot of snorkeling and diving, and walk the beaches regularly. Cataloging my shells also exercises my mind.” The doctor replied, “Shell collecting may be a healthy activity, but your family’s genetic heritage probably has a lot to do with your helath. How old was your father when he died?” “Did I say my father was dead? He’s nearly eighty five and healthy as a horse. Of course, he’s a shell collector too. Spends plenty of time breathing the fresh air at the shore, gets plenty of exercise turning rocks and walking the beaches. It’s the shell collecting that keeps him healthy.” The doctor still wanted to make his point, and asked, “Well, how old was your grandfather when he died?” “Did I say my grandfather died? He's one hundred and five years old, but he's still active with his shell collecting. Of course, he’s had to cut back on SCUBA diving and lifting heavy rocks due to his age, but he still walks the beaches, breathing the fresh sea air and getting plenty of excercise. In fact, he just got married to a lovely young woman.” The doctor was astonished. “Your one hundred and five year old grandfather just got married!?! Why in this world would he want to get married at one hundred and five years old!?!” “Did I say he wanted to get married? . . .”