The Long and the Short of it
Sol Epstein, an elderly man, was seated in Dr. Moskowitz's waiting room. When he was called in to see the doctor, Mr. Epstein got up, and, grasping his cane and hunching over, slowly made his way into the examining room.
After only a few minutes, Mr. Epstein emerged from the room, walking completely upright. Mr. Epstein's friend Morty was in the waiting room and was shocked at his friend's new posture. "That must be a miracle doctor in there." he exclaimed. "What treatment did he give you? What's his secret?"
Sol stared at Morty and said, "Well, Dr. Moskowitz looked me up and down, analyzed the situation, and gave me a cane that was four inches longer than the one I had been using."