A dog might actually take a bath of its own accord. There's more chance of your dog being able to operate the video recorder. You can buy a choke-chain for a dog. A dog is easier to keep well- groomed. Dogs have more chance of receiving an award for bravery.
Dogs are easier to house-train.
Dog do not scratch themselves so much in polite company. A dog can look as though it understands what you're saying. Dogs went into space first. A man will roll over and play dead only if you ask him to get up and make coffee. Dogs enjoy swimming, and not for the chance to ogle girls in bikinis.