aggression and fighting by my 6 year old JRT

My husband and I have a male neutered 6 year old JRT. He has had social problems all his life from the day we brought him home. We tried obedience training, which he couldn't attend because he wanted to fight every dog there (when only a few months old) We tried a trainer who came to our house numerous times, but Eddie bit him. The only people we can trust him around were at our home in the first few days we owned him--other than that, we put him in his kennel to keep him from biting people. We keep our gate padlocked so he won't get loose because when he did one time, he chased every neighborhood child around and bit one on the leg. He has been in several fights with my daughter's lab, but lost badly--we still had to pull him off to get him to give up. The good news is that he has always been a sweet and loving dog to my husband and me--there's just the two of us plus our Westie. Our JRT never challenged the Westie before although he's 6 years older than the JRT, until lately when he has twice attacked the Westie--both times at feeding time. The Westie is 13 and frail. I need help and am thinking of having to give up "Eddie." I feel like I'm living with a timebomb until the next time he accidently gets loose. When he is outside and sees a stranger in my house he lunges at the door and attacks like a maniac, not just normal barking. I'm also getting a new grandchild and worry about what might happen. We love our dog and we're very attached to him but it's starting to get too concerning. I also won't stand by and let him hurt my other dog.

• Re: aggression and fighting by my 6 year old JRT Apr 29 (0)