Aggression is not a "herding instinct" and is never a desirable characteristic in a herding dog. Nor is the inability of a dog to control himself around the animals that he's supposed to be working. And I agree that sheep shouldn't be considered therapeutic equipment for a "wild" and potentially aggressive dog. Sheep are living things with their own feelings of fear, pain and stress and deserve to be treated with respect. I also agree that this is a situation that absolutely warrants w