I have a Frenchie who is almost 4 years old and since the introduction of a new baby, he has been different. He began with aggression toward one of our other dogs (we have 3) when she would get anywhere near the baby. Those two have always had some issues, but it's never escalated the way it did after the baby arrived. Now with a walking toddler, he trails our son everywhere and nips at him occasionally. He bit him on the hand twice. They were minor, but drew blood. We try to redirect him when he's trailing after the toddler, but he goes right back to it shortly thereafter. It is exhausting trying to keep the two apart and I'm really worried about when and how serious the next bite will be. His aggression toward my other dog continues and has gotten worse. He won't stop unless I actually jump on him and grab him. Our vet seems to think rehoming him is the best option. He would probably do best with no children and no other dogs. I tend to think so too, but it breaks my heart. I was wondering if anyone else has had any similar situations or can offer any advice.