Shoot me up, baby!

I saw my knee doctor yesterday. Same old same old. Updated x-rays show bone on bone on the outside of my knee. The last cortisone shot was in October '08 and it lasted almost 2 years. I had another injection yesterday. He says when the cortisone stops working and I can't walk and can't sleep we'll have to consider a replacement. I can wait. Mrs says I have a high tolerance of pain. Yeah, but one insect landing on me rains out my whole parade.