No room for levity. Those around him might be lighthearted. Often they laughed, sometimes even at his expense—the miniature size, bouncing gait, flopping ears. He was a dachshund. Not his fault. You were what you were. He would have preferred the aspect of an Alsatian, possibly a Norwegian elkhound. He viewed himself as one of these large and elegant breeds. This much could be seen with the naked eye, and the dogwalker saw it. The dogwalker was also serious—a loner, except for dogs. He prided himself on his work. He had no patience for moonlighters, for the giddy girls talking on their cell phones as they tottered through Sheep Meadow with seven different-size purebreds on as many leashes, jerking them this way and that and then screeching in indignation when the dogs became confused. He had once seen such a girl get two fingers ripped off. He’d called 911 himself. It was an ugly scene. The paramedics recovered the fingers, snarled up in leather and nylon, but the hand had been twisted so roughly they predicted it would never work right.