Bart: OK, it's not _painfully_ clear the adults are _definitely_ paving the way for an invasion by the saucer people.

Bart: OK, it's not _painfully_ clear the adults are _definitely_
paving the way for an invasion by the saucer people.
Milhouse: You fool! Can't you see it's a massive government conspiracy?
Or have they gotten to you too?
[he and Bart start wrestling]
Lisa: Hey! Hey, hey, stop it! Stop it! Why are you guys jumping
to such ridiculous conclusions? Haven't you ever heard of
Occam's Razor? "The simplest explanation is probably the
correct one."
Bart: [condescending] So what's the simplest explanation?
Lisa: I don't know. Maybe they're all reverse vampires and they
have to get home before dark.
Everyone: Aah! Reverse vampires! Reverse vampires!
[Lisa sighs]
-- "Grampa vs. Sexual Inadequacy"