How do you trust a shepherd? A doberman? A chihuahua?
2009 Dogs that killed humans:
Pit, Rottweiler, mixed breed, husky, mastif, boxer, Pack of dogs, Australian shepherd, Great Dane, Collie Mix, American Bulldog, Malamute, Weimaramer
What surprises me is that Doberman is not on the killer list. I have a hybrid wolf and an American Shepherd. I'd be more worried about the shepherd than the wolf mix.
Any dog can kill.