I have 2 dogs Marlie, a 3 year old lab and Choco, a 1 year old lab/blue healer mix. Marlie was a 1 1/2 years old when he was dropped off by his previous family. I know he has a fear of being abandoned. We got Choco when he was 6 weeks old. The 2 can't be seperated from the hip.
From mid November to Christmas week when I thru him out, My brother-in-law stayed with us. At first they loved being around him. Towards the end they had nothing to do with him. We have no idea what he did to them while we were away from the house. they would run off to other neighbors houses. Within the last couple of weeks we have managed to get them to calm down. Just this past Saturday I was intown my wife let the dogs out to run and play. We live in the country, plenty of space for them to run. Choco comes back and his whole face is torn up. My wife starts cleaning him up and Marlie comes in. When he sees Choco he starts attacking him. My wife had to choke Marlie to get Choco free.
I show up about a half hour later. I show up. We checked Choco for the extent of cuts and scratches. I went to the truck to prepare it for him. Marlie got in the truck during that time. When it was time to leave, I got Marlie out of the truck, as soon as he saw Choco he went after him again. It took everything I had to get him off Choco.
We took Choco to the clinic, got him patched up. When we got him home Marlie ( in a kenel )still wanted to go after him. Sunday, Marlie calmed down some. still wanted to go after him. Today Choco would carfull and wearly go up to the kenel to see Marlie. Marlies reaction to Choco today has been of caution and a couple attempts to lunge at him. We are not sure of what to do.