I wrote to him, stating some of the things discussed in this short thread. It turned out that he and his wife are going to a dance class TONIGHT based on the recommendations I emailed several days ago. He is very appreciative, thinks that I am compassionate, and in no way was hurt. I wrote that I would further research repetitive exercise and then write to him again. I am so glad that I posted and his way learned about the repetitive exercise and the bike.