My male dog just turned four the middle of November. He's normally pretty easy-going and mellow and gets along well with most other dogs. He's a mutt of German Shepard, chow, boxer (25 percent each) and around twelve percent lab and American Staffordshire per DNA testing.
He's now around 95 pounds(about ten pounds overweight!) and loves his social time with people and other dogs. Never fights females or small dogs, will defend himself if an unneutered large male tries to push him around but has never hurt or broken the skin of another dog.
Not at all possessive lets other dogs and my cats eat his food, treats, water, doesn't really care about toys. Occasionally will growl if a dog he doesn't like steals a squeaky right out of his mouth but that's it.
Over a year and a half ago I had my horses at a terrible place for about three months that I learned quickly almost killed my old horse and wasn't caring for either of them. I moved as soon as I found another place and got clearance from the vet that the older horse was stable enough to move.
But that place had a large always loose unsocialized shaggy brown giant dog that used to pounce on my dog and wouldn't get off or leave him alone and wouldn't respect my dog's signs to get off and leave him alone. My dog was always leashed or locked in a horse stall or my car so this other dog would try to get in and jump on and shake the car or the stall or leap on him while he was leashed. Wouldn't stop unless I literally waved a horse whip at him and tapped him with it (not hard and it was literally a last resort my dog was having to bite and snap and freak out and he didn't even feel it or move) and the owner had no control either.
Since then my dog hates giant shaggy dark dogs like leonbergers or Newfoundlands, especially unneutered males and unsocialized ones who try to pounce on him And won't back off if he growls.
There's one particular Newfoundland that he's hated for two and a half years. They've had a few minor scuffles with no injuries in the past and the other owner and I spent many days with both on leashes together feeding them treats and patting and praising them for getting along. This seemed to work for a while And there were no incidents for at least a year or two.
The other dog also always happens to arrive after we do and takes the one squeaky that my dog had been playing with and runs around with it and won't give it up. Or one of my dog's best buddies that he was playing happily with will leave him and go play with the other dog instead.
Last incident the Newfoundland came in and both took the favorite squeaky and my dog's best pal ran off and left my dog and played with him when he'd been playing with my dog literally until the other dog came in. Also unbeknownst to me my dog has mild hip dysplasia on one hip and was a little sore from running into something at full speed on that hip a week before. He wasn't limping or acting sore so I thought he was fine. I saw him glaring at the Newfoundland so I gave him praise and treats for coming to me. Then the Newfoundland's owner started giving other dogs treats so he ran over like he always does. The Newfoundland raced over And crashed hard into my dog knocking his sore hip into a concrete tunnel and my dog went after him. This time the Newfoundland was in a rage and being much bigger and heavier pinned my dog and bit him drawing blood and cutting him all over his face and one leg. It took several people to separate them and the other owner put himself between them since nothing else was working. His arm got several bites and had to be stitched up in the ER. My dog didn't hurt the Newfoundland at all. And was scared And shaking so I had to take him to the ER to make sure he had no internal injuries. That's how I found out about the hip dysplasia. No stitches needed. Just painkillers And he's on joint suppliments now and his face is finally almost fully healed.
Luckily we haven't seen the other dog since then and it was over a month ago.
Every other time he's had a scuffle with that dog I can look back and pinpoint it to a bad medication reaction, or Lyme disease, or thyroid problems or he was defending his friend, or even this time he was in pain from his hip and I should have gotten him x rayed sooner even though he was otherwise acting normal.
He's so mellow and forgiving but hates this one dog and is afraid of this type of dog. I know if it had been one of his buddies or me or the cats that crashed into him he wouldn't have started a fight. And he's strong at 95 pounds but he has no chance against a 150 or 200 pound dog and he's the one that got hurt.
Has anyone been able to train dogs to get over a grudge against another dog to peacefully coexist in public places for short periods of time? Especially if the dogs both normally get along fine with other dogs and just hate each other?
I don't expect them to be best buddies or play or live together, just coexist without fighting in a large open space.
Or do I just grab him and put his leash on and leave and run away whenever I see that dog from now on?
Part of me is hoping since he got hurt and was scared at the time he'll be scared now.
The only other time he got hurt he acts very submissive and gives puppy licks to the other dog whenever he sees him. But they'd been friends for about a year and used to play all the time before that dog started getting aggressive with other dogs and hurt several including his buddies. So a different situation.