When I was living in Queensland, and I had to pragmatically become racist. None one of my liberal sensibilities and modern ideas about skin colour's lack of importance saved me from being hospitalised by group of Aboriginals twice, bashed a total of six times in two months. Which might've been my fault, since I lived in Cairns, in the 'Black Bronx'. I quickly learned, in Cairns if you see dark skin and you're alone at night, fucking leave. Like imperialwar said, 9/10 aboriginals you see will ask you for money, and harass you for a bit if you don't give any. If you do, God help you, you'd better have a lot, because more will see and you don't want to turn the next people down, they get pretty cross. If it's during the day, and you see dark skin, cross the road or turn around and go the other way. It's just not worth it.
Aboriginals are given a wage to live of by the government for free, training for any work they want, agencies who actually find the work for them and set up the interviews, train them to pass the interview, and give them support in almost any capacity you can imagine to keep the job and develop their skills to get a better job. It's no less than everyone is entitled to in Australia, and actually quite a bit more. Ticking the "Are you Aboriginal or Torres Strait Islander?" box on the form gets you a few hundred dollars per fortnight more.
As horrible as it seems, most aboriginals are like this. On the other hand, my best mate is an abo, one of the most talented wood workers in the country. So there's hope yet.