If i remember rightly from the extras on the DVD - One of the writers knew a 수프 place in NY where the owner was very picky about who he served, not really a Nazi but highly strung and the episode was based on him. Apparently the 샵 was then visited 의해 팬 of the show and the owner got very angry about people thinking he was the 'soup nazi' and threatened the writer because of it........maybe he was a Nazi ;-)