A man at a Gyro shop consistently has charged a friend and I increasing amounts for a gyro while yelling at us to not speak Greek if we can speak English.  This really pissed me off when this first happened.  The solution was to go somewhere else.  I am told Greeks do not care if they lose business, but business is business.  Nowadays I just do not care if someone is rude I just let it slide and move on because the majority of Greeks are nice.  When I get home it will be easier to let things slide, hopefully not too easy because you need a little fire inside to survive at home.