Lisa: Why do you have to be such a pain all the time?

Related:

• Lisa: Nelson! Um... that note Milhouse gave you? It wasn't from him.
  It was from... me. Nelson: You?! Why would _you_ like...
• Lisa: [reading] "Nuke the whales?" You don't really believe that,
  do you? Nelson: I dunno. Gotta nuke something...
• Dolph: Oh, man! You kissed a girl! Jimbo: That is so gay!
  Lisa: Listen, you thugs. Stop making fun of him or...
• Lisa: Isn't it nice up here? What are you thinking,
  Nelson? Nelson: Am I thinking about what? Lisa: About...
• Nelson: [reading] "Guess who likes you." [turns around] [Milhouse wiggles his fingers at him] -
  That won't help, "Lisa's Date With...
• Milhouse: You like Nelson?! But he's a creep and he chipped one of my permanent teeth!
  Lisa: But I bet underneath he's a sweet, sensitive...
• Bart: Hey, Lis, Mom said you had the toenail clippers and.
  Woah! Lisa, look out! Nelson's in our house...
• Lisa: [dragging Bart back to the stairs] Why do you have to make this so hard?
  Bart: I'm using non-violent resistance. -- So...
• Nelson: Check it out. Skinner's mopping the goo off his house!
  Wait till he finds what I left in his birdbath...