Lisa: Bart, what's wrong? Bart: [in a monotone] I just had a vision of my own horrible fiery death.

Related:

• Bart: Kolchak..Mannix..Banacek..Dano! [-poof- Lisa turns into a snail] Lisa:
  What's wrong? Bart: I never realized what a beautiful...
• Marge: Goodness, what's wrong? Bart: We both had nightmares.
  Lisa: Can we sleep with you? Homer: You both toilet...
• Lisa: Mom, what's wrong? Marge: It's your father. He's missing.
  Bart: Dad's missing? Get outta here. Marge: He's...
• Lisa: The only way to get Bart back is to kill the head vampire:
  Mr. Burns! Homer: Kill my boss? Do I dare to...
• Lisa: Bleeding Gums Murphy! BG: Little Lisa. It's good to see you again.
  Lisa: It's been a long time... [flashback to...
• Lisa: [breathlessly] Mom, Dad: Mr. Burns is a vampire,
  and he has Bart! Burns: Why, Bart is right here. Bart...
• Lisa: [motioning to the coffins] Satisfied? Bart: Big deal.
  It's no different from the basement in Grandpa's rest...
• Bart: Hey, Lis. Check out _my_ science project. [rubs a balloon over his head,
  then touches Lisa with a spark of static electricity]...
• Bart: [strangled] Shee, ba-ba-ba-ba -- Lisa: Please,
  Bart, I've seen your stupid Shemp. Bart: Gna-gna-gna...