I agree totally. A chihuahua or pomeranian can do as good a job (Well those two breeds do it better than some) as some big dogs at that. Protection training aside, The thing I like about big German Shepherds, Dobermans, and Rottweilers, and the like, is when I'm NOT home, they're a deterrent, because they bark louder than thunder, and to the neighborhood crackheads and Gang bangers, they look SCARY! Had a friend who had a German shepherd 29 inches tall, but he LOVED EVERYBODY and rarely barked. Yet EVERYBODY who saw him thought he was protective, cause he was the biggest shepherd they'd ever seen. Nobody bothered her when she walked him.