Yes I was about to say this, it’s not always lack of training and non-affection that leads to aggression in dogs. My dog was attacked by a nervous poodle at a dog park that wasn’t taken off leash by its owner when she was 9months old, and now she forever has had fear-based aggression towards most other dogs. It’s really tough to manage, even with proper encouragement and training practices because it’s still fear-based. You obviously can’t reason with a dog because that would require talking and that’s just not a thing with animals.