Is your dog driving you crazy barking? There is a reason for this. It's the only way for him to vocalize his communication. Maybe someone is at the door. Maybe he's bored. Maybe he can see a rabbit or bird, that you don't. There is a reason. Trick is, to figure out why. Teach him to stop barking on command. If this doesn't work for you, use a mild bark collar. But remember, he's trying to tell you something, so try not to be too hard on him. You never know.....he may have something IMPORTANT to tell you!