If i remember rightly from the extras on the DVD - One of the writers knew a সুপ 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 ভান্দার was then visited দ্বারা অনুরাগী of the প্রদর্শনী 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 ;-)
