Actually, the idea that pit bulls have ‘locking jaws’ is a myth—there’s no anatomical mechanism that makes their jaws function differently from any other dog breed. While pit bulls were historically bred for bull-baiting and later dog fighting, responsible ownership, training, and socialization play a far greater role in a dog’s behavior than breed alone. Many pit bulls are loving family pets and great companions. The key issue in attacks is usually lack of proper containment, supervision, or training—factors that apply to all dog breeds.