6 years ago we bought a male chocolate lab (for the kids). He did fine for a while but, in the last few years he is starting to show signs of aggression to the kids and our 15 year old female terrier. He has attacked the terrier before. I am so afraid that he will bite one of our kids or their friends that I put a mussel on him or send him to bed while they are here. When I leave the house I mussel him so he wont attack the terrier. What can I do to change this situation?
I would also stop excluding him from being around the kids. Make sure the situation is under control, but you don't want him affiliating bad things with kids (muzzle and seclusion).
I don't mean to sound rude here, but how were the kids with him when he was a puppy? Sometimes kids can be sort of rough and experimental, especially if an adult isn't right there to keep an eye on play time.
Was there a reason he attacked your other dog? Guarding issues over toys/treats or food?
i can understand your concern, it is very understandable. Just try not to be fearful for your family or the dogs sake because they can sense it and it makes them uneasy as well.
There he goes. One of God's own prototypes. A high powered mutant of some kind never even considered for mass production. Too weird to live, and too rare to die.