Here is the background and then I have some questions-
Background- My kid's dad has a 2 yr old viszla/pit bull mix. Never had a problem with him. A week or so ago they got a youngish (1 yr?) dog. I think he is some kind of cattle dog mix. As far as I know they had no problems at his house, were left alone and did fine etc.
Tonight they came over to my house to drop off my son and so I could meet the new dog (he is a sweetie). Anyways, twice the viszla/pit mix attacked the new dog, clamping on his jaws in full on pit bull mode. Very scary. I wasn't here the first time (but their owner was) and not sure what happened. The second time my daughter went to pet the new dog and the Viszla/pit attacked again. It was very hard to get him off, lots of blood, not fun.
so my questions:
We are speculating that the older dog is jealous, but why would it be happening at my house and not at their house? I do have a dog here by the way but he was not involved.
Secondly, I keep thinking what if the dog attacked one of my kids and not another dog! Would this be unlikely? or is it just too hard to tell?
I think the owner is thinking of rehoming the new dog, but I kind of think the older dog should go for safety reasons, but I am not an expert.
Thanks if you have read this far. Any advice or opinions are welcome.