It isn’t just the dog who needs to get used to her owners. A crate provides protection for both the dog and the house. Chocolate labs are beautiful. Ours has a graceful, lilting walk that deserves a stare. A 9 year-old daughter who will pick up dog poop without complaining will be a good dog-owner. Boys learn the firm, commanding tone of voice very early. Dogs can’t climb out of pools without the steps, or without someone pulling them out. Vacuuming and mopping can be extra satisfying after owning a dog for five days. We will spend a lot of money at the pet store. A plastic bag with a hole in it is a whole lot worse than no bag at all. Typically-walk-averse children don’t complain about the length of the walk when going with a dog. A thunderstorm can be exhausting. Kong Frisbees don’t float. Swimming with a dog can make kids forget that the water is only 64 degrees Fahrenheit. But you must learn to stay away from her claws. Goo...