You Greeks are a proud people—as you should be—but your "I'm as Greek as feta!" reminds me amusingly of a scene in Blackadder Goes Forth. A British soldier in the First World War is accused of spying for the Germans. In his defense, he shouts "I'm as British as Queen Victoria!" It's not as strong a defense as he thinks. https://www.youtube.com/watch?v=Iu6YFBQOB3c