I don’t know. I mean retrievers have an instinct to retrieve, they will chase something thrown even though they aren’t trained. You might have to train them to retrieve properly, to bring it right back, mouth pressure and so on. I think terriers have an instinct to kill small animals. I think bred instinct makes all dog breeds different from each other.
I would love to know what % of trained pit bulls attack vs untrained pit bulls, and how that compares to other dogs. Supposedly only 5% of dog owners bother to train their animals, which makes for miserable dogs and miserable people. I would expect pits to be generally less trained by % than most dogs considering what % of scum makes use of them.
Freegards
My first dog, that I paid for myself, was a Sheltie. They are a herding breed; and, one evening my Mother had some friends over. They had gotten up to leave and were joking and talking with one another when someone noticed that our little Sheltie had divided them up into 3 groups and was patroling between each of the groups. She "herded" them.
Never had taught her to do that, just instinct.
Hubby and I had a wonderful corgi. Corgis are "drovers" - they drive cattle, that is what they are bred for. Our Griffyn would sometimes nip at our heels while we were walking. Again, instinct.