Has he considered emigrating to Australia? In that country millions of cats are shot each year - so too kangaroos. To the locals they are merely vermin. If you are looking for a cat-hunt, Australia is the place. You could kill with impunity - without any fear of the reprisal of cat-lovers. As any sadistic animal-killer will inform you, the best thing about shooting cats or kangaroos, or deer for that matter, is that they never shoot back.