“She doesn’t have much time,” my mother said over the phone one April morning, “you should come down this weekend.” My dog, an almost 17-year-old white, coal-eyed Bichon Frise, who had been part of the family since she was four months old, was dying. Whether it was a recently-found tumor or a long-hidden hormonal imbalance, the problem was neurological, and Dr. Cohen told us there was little he could do for her. “If she were my dog,” he said, “I would take her home to be with the family.” And so my mother did.