The scariest thing was when my injured dog screamed in pain and our other dog immediately viciously attacks trying to kill him, it appeared. It scared the heck out of my wife & myself!
I saw the same thing happen in a nature show where the pack rips apart an injured member.
I was at least able to pick her up off of him (then he bites me!)
Our Female does this, and once again shows she is a very primitive, instinct driven dog. The same goes for killing small animals. It's instantaneous, no playing involved, all business- It certainly brings up her African lineage in the back of my mind. She turns into a wild animal at the flick of a switch.
Our tri seems to be getting better everyday, but we are still trying to keep his activity down (no walks or jumping up & off things), still on meds