Primrose53
J52
In my opinion nasty dogs are not trained properly.
My SIL who I mentioned above had dogs all her life and the cocker was the only one that was nasty.
She and her husband trained all their dogs ( and still do), they got two long walks a day, good food and regular veterinary care but this dog was not safe. Particularly upsetting as she had set her heart on one.
Golden ones were nasty at one time but, unfortunately, everyone wanted the golden ones so they just carried on breeding them. I think it’s been bred out of them now, though. At least, I hope so.