Related:

• Lisa: Grandpa's a vampire? Bart: We're all vampires!
  Lisa: But, no! We killed Mr. Burns -- Homer: You have to kill the _head_ vampire....
• Homer: Bart! How many times have I told you not to bite your sis -- [gasps] Wait a minute!
  You _are_ a vampire! Abe: Quick! We have to kill the boy!...
• Lisa: The only way to get Bart back is to kill the head vampire
  Mr. Burns! Homer: Kill my boss? Do I dare to live out the American dream?...
• Homer, we've got to do something. Today, he's drinking people's blood.
  Tomorrow, he could be smoking!...
• Lisa: [breathlessly] Mom, Dad: Mr. Burns is a vampire, and he has Bart!
  Burns: Why, Bart is right here. Bart: [droning] Hello, Mother....
• Hutz: [walking around a corner] Well, I didn't win.
  Here's your pizza. Marge: But we _did_ win! Hutz...
• Bart: [English accent] Stupid party, wish we were trick or treat'n.
  Marge: Now Bart, you can find just as much horror around the house. -- "Treehouse of Horror III...
• Could you kill a vampire with a sunlamp?
• Marge: I don't understand why we have to build a ray gun to aim at a planet I never even heard of.
  Homer: Don't blame me, *I* voted for Kodos. -- "Treehouse of Horror VII...