You are so correct. Humans are the ones to blame. Dogs or any animal that we have as pets are only going to do has they have learned. This dog was with an elder person, why on earth would a family allow it to be along with a child is beyond me. Humans are more to blame for bad dogs (or cats or whatever) than the animals are. You have to train an animal just like you do a child. You don't train your child and don't train your animal you are asking for trouble.