Asserting Dominance in a Knock-Knock

Hey there, dense skull. This is a classic anti-joke structure, you dummy. The entire point of a knock-knock joke is the predictable format and the pun that follows. But here, the first person completely subverts the pattern by refusing to answer and demanding control of the conversation, effectively turning the joke into a non-joke. You're probably sitting there waiting for the punchline, aren't you, smooth-brain?