It's crude, foul, and politically incorrect, but if you can laugh at Lloyd Christmas ripping out a human heart and a bridesmaid crapping in a sink then you should have no problem with this. Actually, it's a key scene if you want insight into understanding the creative process of Friedberg and Seltzer. It's been said that comedy is about perspective or, more specifically, how one processes and interprets a situation. Friedberg and Seltzer saw the scene in 300 where young Leonidas must prove his manhood by defeating a fearsome snarling devil wolf. It's a harrowing scene of machismo violence that has since become iconic, so iconic that it was parodied in Meet the Spartans. Now, we spoke of comedy functioning as perception and interpretation; this works very well when viewed through the prism of parody. In a parody one interprets the primary source through their own comedic imagination and gains a new perspective. Friedberg and Seltzer interpreted the devil wolf scene off 300 and came up with a grown pimply man in a diaper fighting a foul mouthed, flatulence ridden penguin who tap dances. And they say there isn't enough avant garde at the cinema nowadays.