Grandpa and Arnold in “Unfinished Business”

Grandpa

[looking through a photo album] Heh Heh Heh, there’s Gertie rolling me in honey and staking me on top of an ant hill. [Arnold is seen walking up the stairs] That mischievous, pigtailed little imp. Oh mercy.

Hey Grandpa.

Grandpa

Why, if it isn’t young Arnold home from his day at school. How come you’re all covered in paint?

Helga poured it on me. So I poured some on her.

Grandpa

[stands up] What! Oh my word, you’ve snapped Arnold! You’ve turned into some kind of vicious, paint-pouring thug. [Arnold rolls eyes] I don’t know what to think about you any more. Why didn’t you follow your instincts like I told you?

I did Grandpa.

Grandpa

I wasn't talking about those instincts. I meant your good ones.

I know, Grandpa. I feel terrible. What should I do?

Grandpa

Well, you may be stuck with this girl for a long time, you better try and make peace.

Yeah, I'm gonna call Helga and apologize.