A friend of mine was sitting on a lawn, sunning and reading, when he was startled by a fairly late model car crashing through a hedge and coming to rest on his lawn. He helped the elderly driver out and sat her on a lawn chair.
"My goodness" he exclaimed,
"you are quite old to be driving!"
"Yes" she replied,
"I am old enough that I don't need a license. The last time I went to my doctor, he examined me and asked if I had a driving license. I told him yes and handed it to him. He took scissors out of a drawer, cut the license into pieces and threw them in the wastebasket. 'You won't be needing this anymore,' he said. So I thanked him, got in my car and drove off."