Well, I had a hard-learned lesson last night. My big cat was on my lap. When he decides to get down, he jumps off of my new knee with both back feet. OUCH! He probably weights 15# and it hurt. My knee was feeling so much better, but not now. I iced all night, took an Ambient, Tramadol and Tylenol, but was still up and down all night. Finally I got up at 4:30 and took an Oxy. I slept a couple of hours then, but not near enough. I'm back on the Tramadol this morning. It is obvious that my knee isn't healed inside yet. I'm surprised and disappointed that his jump off has caused such a set back. So everyone out there that have lap pets, keep that knee protected! I've not let any of my kitties on me this morning at all! They are looking at me like, "why mama, what have I done?" Better safe than sorry.