Yeah, I know they exist. In Poland, I had little kids yell "Mussolini" at me. Rather interesting experience. And then, on a language course in France, there was this girl who said she was from Austria. But when she mentioned her hometown, I found out that she was from Germany. She said that she doesn't like to admit that because she feels embarassed being a German, because of Hitler. The fact that Hitler was Austrian apparently never had entered her brain. Weirdest thing I had ever seen.
Still, I have managed not to get in contact with too many of them. So I like to believe they only exist in small numbers.