I suspect the question of dog bites is more training than genetic. Much of our society has moved away from farming and animal husbandry. We don’t understand animals like we used to. Too often the idea of having an animal in our homes is lead by a romantic notion of affection and loyalty. We lack the once common wisdom of how to teach our dogs and cats to behave in a human world, be it a lap dog or a working dog, a window sill cat or a barn cat.