An old man limped into the doctor’s office and said, “Doctor, my knee hurts so bad, I can hardly walk!”
The doctor slowly checked him from head to toe, paused and then said, “Sir, how old are you?”
“I’m 98”, the old man announced proudly.
The doctor just sighed and looked at him. Finally, he said, “Sir, I’m sorry. I mean, just look at you. You are almost one hundred years old and you’re complaining that your knee hurts? Well, what did you expect?”
The old man replied, “Well, this knee is 98 years old, but my other is younger because it is not hurting!”