Almost every dog has some degree of prey drive—it's in his genes—some more than others. You may experience it when your otherwise well mannered dog suddenly takes off chasing after a rabbit, squirrel, or a jogger. The old approach to solving this problem involved the use of “corrective” devices like choke chains and electronic fences. A better approach includes training and management techniques that reward your dog for choosing to focus on and stay near you, the owner.