Homer: America, take a good look at your beloved candidates.

Homer: America, take a good look at your beloved candidates. They're
nothing but hideous space reptiles. [unmasks them]
[audience gasps in terror]
Kodos: It's true, we _are_ aliens. But what are you going to do about
it? It's a two-party system; you have to vote for one of us.
[murmurs]
Man1: He's right, this is a two-party system.
Man2: Well, I believe I'll vote for a third-party candidate.
Kang: Go ahead, throw your vote away.
[Kang and Kodos laugh out loud]
[Ross Perot smashes his "Perot 96" hat]
-- "Treehouse of Horror VII"