I have a dog that I rescued when she was 4 months old and she was very jealous from day one, even if I had six other dogs at home. A few months later I adopted her brother and although they have a great time playing together she gets very aggresive when I stroke him or the other dogs, especially if she is sleeping at my feet. She doesn`t fight for food or toys.I always have a water hose ready in case they get serious, as I`m still in pain for the loss of my dog who was killed by his own son. All the other dogs are also aggressive and they growl at meal time or just to protect their favourite corner. I have a shock collar that I only use when the puppies chase the neighbours`chickens, but I would like to know if it is wrong to pet aggressive or jealous dogs, and if it is my fault and I am doing the wrong thing by giving them so much attention.
P D : They are australian cattledog mix, by the way.