'My mother, now in her ninetieth year, told me yesterday that she had hurt her hand. she had been walking through the hallway to her bedroom when she accidentally knocked it against the doorknob. she must have hit it hard because the top layer of skin came off and it was bleeding. When she looked at it more closely she realised that not only had she knocked off the top layer of skin but also the wound was deep. she could see her tendons down to the bone. she took herself to the office in the home where she lives in the hope that a nurse would be on duty. ' (Introduction)