Every week, my father lays his small turquoise towel down on the gray Formica kitchen table, opens the gold-plated case, and takes out his nail file, scissors, clipper. He starts by cleaning each nail slowly, the file going from one end of his nail to the other to clean out the specs of fat and blood. I stand and watch, 11 years old, wondering how hands that would sooner carry sides of beef than touch another human being could require so much attention.