Marge: Grampa, could you do something? Grampa: I can dress myself.

Related:

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  It's a list of the things Lisa and I can and can't...
• Grampa: [pours Lisa a cup of coffee] Sugar? Lisa: Yes,
  ten please. Bart: [shaking] Hey Grampa, top me off...
• It's no use kidding myself. I'm having an ethical crisis.
  Lisa is concerned about how she and Bart are taking...
• Grampa: [fumbling with the joystick] What do I do? Bart:
  Grampa, do you want to go to the right? Grampa: Yes...
• Moe: Hey, get away from that! Leave him alone!
  Kearney: It said I was gay! [Kearney and Dolph leave...
• Marge: Please, Grampa, he's in a coma. Grampa: Coma!
  Pfffft. Why, I go in and out of comas all the... ...
• Grampa: [Whiny] Are we there yet? Homer: No. Grampa:
  Are we there yet? Homer: No. Grampa: Are we there...
• Bart: After the supermarket, we'll go to the video store,
  grab a Krusty Burger, and head for the arcade...
• Nurse: [answers phone] Simpson. Grampa: Hot diggity!
  I don't care if it's bad news! Lisa: Oh, Grampa...