Hello all, I've got a 19 month old cocker spaniel. They have a lovely bond and I have no concerns about their relationship. However this last 2/3 week our dog has started acting aggressively to other dogs when out on walks with the baby present. These are dogs that he has known since we brought him home at 10 weeks. I am wondering if he is persevering other dogs as a threat to the baby? I always shout at him and he backs down and lies on his back immediately I'm just concerned that he will pick a fight with the wrong dog and end up hurt or that one day he doesn't listen and hurts another dog. He hasn't been neutered as we wanted to breed from him... I would do it if it was the solution but he is so different when the baby isn't present up until now he has always been ran away from any confrontation with his tail between his legs. We have genuinely never seen any aggression from him before. Any tips, suggestions or insights please?