SadMushroom...if in Australia you are judging the "game" in dogs by puppy behavior...you are fooling yourselves. If ya'll buy dogs based on the behavior as a juvenille or puppy, you might as well roll the dice...it is a crap shoot. Some of the best dogs are ones that didn't turn "hot" until they were 2 years old or later. I understand that it is safer to just PTS than try to rehab a known fighting dog, but that does not mean that it is the correct choice based on what the dog will be. HA dogs are going to most likely be the ones that don't have scars so based on your criteria, they would be spared and the dogs with DA would be PTS...bassackwards as far as I can tell.