Emus will steal your lunch, they’re not violent. The emu war would better be termed the failed emu massacre (the soldiers had trouble hitting them with machine guns as they are mostly feathers)

If you want an Aussie bird to be afraid of cassowaries have killed people. Drunk people, but I think that’s only because only drunk people think it might be a good idea to fuck with the dinosaurs. A cassowary would likely win against a sober person too