Not to generalize, but Aussies are a tough bunch. Greg Tonkins, apparently a zoo keeper from Dubbo, NSW, was on a hunting trip when this kangaroo gets his dog in a serious headlock. He bum rushes it then proceeds to beat the animal at its own game (aren’t kangas supposed to be the world’s best boxers?). Check out Tonkins right hook. The animal just kinda stands there dumbfounded after Tonkins lays the smack down.
Of course, sparring with kangaroos is an old tradition: