My darling 91 year old Opa Gebhard just got out of hospital, after having the battery in his pace-maker replaced, as it was going to run out of energy.
Opa said to the Doctor: "You didn't mention that this would be necessary when you installed the thing (ten years ago)..."
The Doctor laughed, shook his head, and said "Well Herr Quinger! We didn't think you would live so long!"
Here's to another ten years!