yea i see how you feel, my Father in Law is 78 and he is and has always been 100 MPH, he can't do it anymore and now has bad knees etc. He still tries to do all of the yard work etc but has learned to rely on me for harder things, cutting wood, trees down and rebuliding equipment etc. I do more for him than any other person (he is actually my ex - father -in -law) go figure!! i enjoy doing things for a lot of people.