I love dogs, and I dote on my children. But when our daughter started to beg for a dog for her sixteenth birthday, I was determined to resist.

“All I want is a dog. Nothing else. Nothing,” said Charlotte, used to getting her way with her parents. What Charlotte really wanted was a cat, but her father, Jack, claims to be allergic to them. Being resourceful, Charlotte went on the American Kennel Club website to find a breed that was as much like a cat as possible. She found what she was looking for and began to ply me with offhand remarks like “Pomeranians are exceptionally trainable” and “Sixteen is one of the most important birthdays of all.”