One of my favorite scenes from Blazing Saddles.
My best is the beginning, when the two blacks are drowning in quicksand and the white boss saves the cart instead and tells them to stop laying about, or when Cleavon Little tries to catch the KKK guys standing on the line, Gene Wilder goes "oh boyyys" And Cleavon Little says "Where the white women at?" Totally racist stuff, but the first time I saw that in the `70`s when it first came out I almost broke my gut. I swear that was the hardest I ever laughed, just totally insane stuff.