Ye Olde Minstrels (1941)
Buckwheat: Look, Spanky, don't you gotta put on a black-face make-up when you do a Minstrel Show?
Spanky: Well what are you worryin' about?
Froggy: One day the streets in England were muddy and Sir Walter laid his coat in the mud like a carpet - so Queen Elizabeth wouldn't get her feet wet.
Spanky: That's Right! And what did Sir Walter say to the Queen when he laid his coat in the mud?
Froggy: Step on it, kid.