^There's a vast difference between a herding dog doing what comes naturally though (your dog was 'herding' those sheep in her mind which is why she never touched the animals), and a dog who is just doing it just to do it. Rotties are a working dog, not a herding dog, so he isn't going to chase an animal with getting it back to a certain spot in mind. Border collies, Bearded collies, and other collies were bred to work sheep ALONE in the field...I believe Kelpies fall in that category as well; they had to know instinctively "what" to do from birth...yes, they needed training to know "how" exactly to do it, but the instinct was there...often times puppies will learn how right from their parents, which is why alot of hard core working dog breeders won't part with good working dog lines until they are much older than 8 weeks old...they give those dogs every chance to gain as much education as they can from their parents as they can. I had a border collie mix, who had no herding dog training, but she instinctively knew how to herd a flock too. On the same token, I had a Corgi mix who preferred to chase stock, and you CAN tell the difference between the two...dogs that herd aren't going to touch the animal, but a dog who chases will try their darndest TO get to the animal.