John, that is wonderful for your daughter! Congratulations on Buddy and your's wins too! It is great for you two to have this shared experience. For you to keep up with Buddy is a win too. Charlie passed his first obedience course (I THINK I did too! Hahaha) and we had signed up for the next class - it would lead to the CGC test and Therapy Dog test. Right after the first class, my husband's mother died and we had to leave for Arkansas for two weeks for the funeral and to clean out her house. While we were gone, my daughter kept Charlie and GiGi (cat). There was a doggy daycare next door to her work, so we thought this would be a perfect solution. The other dogs in Charlie's group included two dogs that had aggression issues and they would mount Charlie most of the day. He spent most of his day hiding outside in the 100 plus heat laying on concrete. We could witness all of this on their "doggy daycams". Needless to say, we called and called, my daughter went over on her lunch hour complaining. They said he would eventually snap back at them. But, as we tried to explain to them, Charlie is a very shy and timid dog. They moved him to the indoor room with the tiny dogs and he was happy. He slept most of the day in the A/C. If you remember, when we first got Charlie, he was so timid that it took us 3 weeks to get a tail wag. Anyway, he reverted back and we had to win him over again. It didn't take as long, but he seems to have forgotten some of his commands - or chooses to! I dropped him back to the beginner obedience class and start that today. He continues to be a very loving dog, although Beagle stubborn. No solid recall out of the yard.
My knee, as yours, does swell with activity. That is uncomfortable, but not nearly as bad as before surgery. I am walking more and riding my recumbent bike each day. Resting seems to help, but sitting with it bent - at a desk when I work - makes it swell and get stiff. All in all, I find it continues to improve. It is truly a long recovery. I ran into my PT and he said they can swell for 12-18 months. The stomach is another matter that hampers life. THAT is one thing from my TKR surgery I will never be happy about. Thanks for asking.
Enjoy Buddy and your new knee!