Every group has there heroes.
Only reason why you don't hear much about Australians in the city is because they don't have the numbers to back up there mouth, In outter suburbs like Berwick, Pake, Beacy where the Australian contingent is high there is alot of fights mostly due to Football which was stated earlier if Berwick player gets bumped hard by a Beacy player vice verse and because there is hardly any clubs in the area just Blitz they all meet there and rumble.
I don't believe the drugs are the problem, Alcohol is.