Since you've gone thru' OCS, you don't really have to worry
about all those rascist remarks. Basically, they are of a minority.
If push really comes to shove, so to say, just grab hold of the
mother-fcuker and let him taste some asian knuckles. These fcukers
are basically cowards. They always have a warped idea of all
asians, especially Chinese. They think we know some kungfu and just
show them some faked kungfu stance in such situations and they'll
run off.
Just remember, be confident and enjoy your stay in Oz.