The Niavaroni-Sax Gym in Roseville, California stands beside a Marines recruiting office. On the building façade in large, white letters are the words KICKBOXING INC. I had come to interview a young, light heavyweight named Brandon Gonzalez, and had been told by his trainer that I should come at 9:00AM if I wanted to watch him spar. When I arrived, at a quarter to nine, the gym was not open, and I sat in my truck. A silver Isuzu Rodeo pulled in and parked, perhaps, like me, waiting for the doors to open, but then drove away a few minutes later. I went across the street for a cup of coffee, and when I returned, at 9:30, the open sign had been illuminated, the silver Isuzu had returned, and visible through the plate glass window was a man standing at the front counter. I turned off my truck and went in.