Overwhelming response to sharpen! I will sharpen and recommend or supply gloves. I was not concerned about his mental capacity and at first I thought carving would keep him engaged and provide a focus for him to enjoy. Then I became concerned about the uncontrolled movements that Parkinson produces and the use carving knives. I have given him some 3/4 pine pieces that would good for chip carving, when he brings the knives by will sharpen them and discuss gloves as Ellen others have said. Thank you all, I have lurked for a long time and learned quite a lot.