I was owned by a Jack Russell whilst contract blackberry spraying around Ballandean in Queensland.
He hunted anything that moved especially feral cats.
He usually came home covered in blood with shredded ears and after a clean up and a good feed was ready for work the next day.
One morning I found him in a rather depressed state and he had'nt eaten his supper.
A trip to David Battle the Vet in Stanthorpe ,diagnosis a red bellied black snake bite.
Transfussion from a black lab and an overnight stay and he was rearing to go again but would have nothing to do with lizards or snakes from that time on.
An old timer Barney Belford told me that he would abcess at the site of the bite twice and then heal up,which is exactly what happened.
Hope I havent bored you too much.
Al