Whistling Dixie

Yesterday I had a discussion with a New Orleans native on the respective goals of the American KKK and the German NPD (not too many similarities). I couldn't help it, but I suddenly found myself adding to the awkwardness of the discussion by repeatedly using the expression "you ain't whistling Dixie". I just couldn't help myself. Maybe he didn't notice....
However, I was very happy to find Wikipedia Whistling Dixie. It loops automatically, I've been letting it whistle on all day.
And I wish I was in Dixie. Hooray! Hooray!