Matematyka
The sequence serves as a subversive introduction to Shrek’s character and the film's tone, which deliberately mocks traditional, polished fairy tales [1].
Shrek, a large, green, intimidating ogre, is living comfortably in his swamp. He reads a fairy tale book, rips a page out, and exits his outhouse, immediately establishing his crude, solitary lifestyle [1].
The scene mocks the idea of "happily ever after" by replacing the traditional "once upon a time" opening with a disgusting, humorous, and relatable character [1].