It's not that bad here though to quote a fellow Australian; "As long as you knock your shoes out every morning, and don't go poking in holes in the ground, and wear long pants with thick socks and heavy boots, and don't swim north of the Tropic of Capricorn in the wet season, and don't swim at all in the Northern Territory, and keep a forked stick handy, and an antivenine kit, and stay within a 10 minute helicopter flight of a hospital, you're perfectly safe. Most of the time."
It's not just the bugs and reptiles that get you. Even 'harmless' animals such as the Koala and the Platypus can attack and seriously injure people. Hell, the Platypus is poisonous.
And don't even get me started on Drop Bears...