You can see when Dad’s ego is in charge. “Things shouldn’t be like this” kicks in.
This includes not only little things that I have got wrong in my attempts to replicate his routines, but also frustration at himself and the confusion that his increased loss of short term memory is causing.
But when that voice isn’t there, when he just accepts things as they are, he is relaxed and happy.
I would do well to learn from watching him.