My mother is 97 years old and has late-stage Alzheimer's. She can’t take care of herself and needs assistance with all her daily needs (can’t walk, talk, bathe or feed herself and is incontinent,) She gets upset and pulls back her hand when I try to cut her finger nails. Sometimes this results in an unintentional pinch to her finger which only exacerbates the situation. She won’t let me file them either. Does anyone have any tips on the best way to cut her nails?