Does anyone remember that Simpsons episode where all the parents are off having sex and so the kids decide there's a conspiracy behind their parents' disappearances and... they come together in the treehouse to pitch their completely insane ideas at each other?
To which Lisa replies sarcastically "maybe it's reverse-vampires"... and they're all like "yeah! yeah! that's possible!" and despite her protestations, when the kids all come up with a giant unwieldy stupid conspiracy theory that fits together all their stupid little theories together, they throw the reverse-vampires into it for her?