“My neighbor’s huge, giant, (did I say big?) rottweiler is so very gentle. You are correct that it is the owners fault.”
To be fair, a dog’s temperament may also relate to their breeding. In the wrong hands, any breed can become a disaster.
One of the finest therapy dog’s I ever met was a full-blooded rottweiler. He was absolutely the best! So much so, that he was usually assigned to “work” with terminally ill children and the elderly. Great dog!