Ok RTFers I need some serious help. The topic title is a little tongue in cheek.
As a pup my chessie had gone everywhere with me and my family. Home depot, dog parks, fun runs, all kinds of stuff. He liked everything except car rides. Loved people.
I sent him to a trainer for 6 months and brought him home. He came back like he never left.
That week my wife took him to work with her at the vet clinic for a routine checkup and to get some preventive meds. He lost it. Tried to attack anyone that can near. I thought it was just that he was protecting her and figured we could fix it pretty easily with me there.
Yesterday I took him hunting with a buddy. Buddy showed up, jumped in the truck with us with no problems. I thought cool, wife just didnt know how to let him know it was a safe environment the first time.
Last night my in laws flew in. We kept him in his crate and then introduced them. He went ballistic so wife just put him outside and kept him in his crate. This morning I decided to do the intro myself. I walked him over to my mother in law, had him sit, and kept my feet on either side of him with a firm grip on hos collar. He wagged his tail and looked totally at ease. Relaxed ears and facial expression. He even tried to lick at her. As soon as she slowly and smoothly went to let him sniff and lick her hand, he went full on nuclear. I would never have believed it if I didnt see it. He loterally instantly went from calm and happy to scary cujo in a half second. As she pulled her hand away he tried to jump and bite at her hand again. I moved my arm around his neck and rolled him onto the floor with me so I was on top of him with a lazy halfway choke hold on his neck, he brought his level down to just angry and i put him outside. I wanted to have people greet him with treats to break him of this but after what I saw Im afraid the risk of injury is too high.
After I told the trainer about the vet incident he was shocked. He had never dealt with a chessie that was people aggressive. My wife and daughter can do anything to him including mess with his food while he is eating it and he doesnt react. Trainer told me to put him in that position again and then light him up with the collar when he goes for the kill, but Im concerned this approach will only reinforce to him that all strangers are evil. I need help. Ive never been in this situation and I always thought these people that got in this situation before were stupid owners. He has never had a negative interaction before the trainers and I never would have guessed he would do this. I never allowed any aggressive behavior and I discourage him ttying to protect the back yard. It was like a light switch from relaxed to kill mode. Completely unwarranted.
I dont want to get someone hurt trying to get him to change, especially if I get zero warning signs he doesnt like whats going on. My wifes coworkers are willing to try but Id hate them to get bit. Anyone have any ideas? Hes healthy and fully up on all his shots. Sorry for the rant but the more I think about it the more Im concerned I now have a liability pet instead of a hunting companion.