I'll introduce this with a story. Many years ago, I was at an affair attended by a very chauvinistic, left-wing Greek fellow who would expound upon the superiority of Greek culture while at times demeaning the U.S. He was like the father character in My Big Fat Greek Wedding, only with an anti-American twist. Desiring to take him down a peg and do a little face-to-face trolling, I finally said with a smirk, "If all that's true, why is Greece now like a third-world country?" (For those offended, know that I have great respect for ancient Greek accomplishments, just love moussaka, and have the physique of a Spartan hoplite.)
Well, I exaggerate not when saying he turned red and, with veins popping out in his neck, exclaimed, "Don't say that! Don't say that!" It was the kind of situation where you get the feeling the guy might take a swing at you.