The main one is that you have to believe that REAL aviation only exists in the land of OZ, and that all things related to aviation started and only managed correctly in OZ (except CAT III approaches). And that only the R/T procedures done by the OZ are the correct ones.
Only kidding girls, but? (Ok, Ok it is a windup, relax, where's that well known Ozzie give a sh## attitude the rest of the world believes?)