I wrote a post about it at the time, but I cannot find it now. My stepmother who lives just out of Echuca has two indoors dogs, and some outdoor breeding dogs. One indoor dog is a little Jack Russell and the other a large black dog, species unknown, but it is a big bugger.
They get on perfectly well and the big dog is a great indoors dog. He is very playful and affectionate.
However, outside he is quite different as we observed and were quite distressed the time when we were visiting and he decided to tackle a heifer. He grabbed her by the throat and hung on tight until he was beaten off. Honestly, I could never trust a dog like that ever again.
Blackie, is locked up every morning for about three hours while the breeding dogs are exercised. Whether it came in after he was locked up or was already there, there was a snake in his enclosure. Blackie killed the snake but the snake killed him too. A zero outcome. Stepmother is upset, but I feel the place will be safer for all now.