Thank you! "Animal Crackers" is the right one, I think!
One of the funniest parts of Groucho's song in "Duck Soup", to me, is that right after singing the line "And whistling is forbidden", he goes off dancing through the crowd, whistling. How subversive! :)
Jeepers.... You guys are having fun... disregard my boring post. I am locked in an un-fun mindset I guess, and not really being a good influence on the thread.