Training a dog can be a tough but rewarding process, especially if you're looking to reward good behaviour and discourage the bad. What should dog owners do when their dog misbehaves? He explained: "It could be the dog just being a dog (chewing or digging) or actually a sign of an unmet need (E.g. He added: "Digging, for example, is a natural dog behaviour, but no one wants their lovely lawn to be full of holes. Over time, your dog will learn that mouthing means the fun ends, so they will gradually stop doing it."