"Fit for life Morris had reached 60, so h..." joke

Fit for life
Morris had reached 60, so he went to see doctor Myers for a full medical check-up. When he had finished, doctor Myers said, "Relax, Morris, you’re in very good shape. I can’t find anything wrong with you. You’ll probably live till you’re 100. So how old was your father when he died?"
Morris replied, "Did I say he was dead?"
Doctor Myers then asked, "How old is your father, is he still active?"
"He’s 83 and goes jogging and Israeli dancing every week." Morris replied.
Doctor Myers was very surprised. "How old was your grandfather when he died?"
Morris again answered, "Did I say he was dead, doctor?"
Doctor Myers was astonished. "You mean to tell me that you are 60 years old and both your father and grandfather are alive? Is your grandfather active?"
Morris replied, "He goes swimming twice a week, and plays a full round of golf every Sunday, weather permitting. Not only that, he is 107 years old and next month he is getting married again."
Doctor Myers said, "If he’s 107 years old, why on earth would your grandfather want to get married?"
Morris looked Doctor Myers in the eye and said, "Did I say he wanted to?"