Thought I'd add that at least in HK we can walk around late at night and still feel relatively safe. Over in Australia I wouldn't do that, at least not anymore - alcohol fuelled violence, assaults etc are all too common for my liking. Add in a few native aboriginal gangs and you are in for a wild one.
Driving an expensive vehicle/looking successful (esp if you are young) can get you plenty of verbal abuse too - tall poppy syndrome is rife!
Go to the beach and watch for used syringes in the sand. I could go on but you get the picture. Australia aint all sunshine and smiles as they like to portray.
Yeah, compared to this I don't mind putting up with ppl talking loudly on mobile phones and pushing past you when I'm in HK...