We had our grandchildren stay with us overnight yesterday, had breakfast together, and saw them off to school this morning. This afternoon, we picked them up from school, and they, my wife, and I visited Derek in the hospital. He is in very good shape, taking some painkillers, but otherwise fine. An intravenous tube keeps his electrolytes balanced, and he won't be having any food for a couple of days at least. So he'll be losing some weight, but he was back to slightly above his normal weight before, so it should be relatively little. The operation itself took about half an hour.
Because we were looking after the kids, our daughter-in-law stayed with Derek since he went to the hospital to have the operation this morning. All of us (except Derek, of course) went to dinner at Earl's after our visit - Derek was getting tired, and we didn't want to make it hard on him. My wife and I got back about 45 minutes ago - the kids went home with mom, after going back to his hospital room to say "goodnight".
All of us hope to have him back home within a week.