I agree Zepmom, my shepherd is very aggressive and protective. She is never let out alone, I don't have a fenced in yard but I do have a very large kennel that on nice days she likes to go out and lay in the sun. You and I think alike, I like the fact that no one could come in my house and I don't have to worry about being attacked if I'm out walking her no matter what time it is. She loves my daughters and my son, NO ONE else, when I have company I put her in her kennel because I don't trust her. She is great with other animals, its just strangers she has an issue with. I've had german shepherds for years and I've learned that you always have to assume your dog will bite, you never know what will trigger an attack. And you can't depend on people controlling their kids. If we choose to have this kind of dog then we must be prepared to accept the responsibility of owning such an animal.