is he desexed? If he is still entire that may help with the aggression. He probably is a bit bored though, do you have kongs you can put peanut butter in and give to him? Lots of bones, our dog loves the clam shells filled with either water or sand.

I was shocked at my dog last week when i was at my parents..he and their little female Jack Russell got into a fight. She kept growling and snapping at him when he was nowhere near her and I don't know if he got sick of her or what but she snapped at him then he snapped back and grabbed her by the neck and she grabbed him by his leg..was a bit comical watching a Golden retriever and a JRT going at it, but still scared me a bit as that's the first time he's shown aggression like that. I'm thinking he needs to get the chop SOON, just need to find the money for it and convince DF it's the right thing to do.

so..sorry to get sidetracked! If you think he would do better in a home that has a bit more spare time to throw his way, and a bigger space to roam then maybe look at rehoming him. there would be plenty of kelpie rescue organisations that can help you out, or even just put some feelers out. Good luck!