Jack: Do you think I take everything everybody offers me? You offered me sponge cake yesterday. Did I take it?
Morty: You said you didn't want it!
Jack: Of course I wanted it! I love sponge cake!
Morty: Then who the hell said you couldn't have any? I mean what the hell do I care whether you have sponge cake?
Jack: Because I saw the look on your face last week when I took the scotch tape!
Morty: Ahh! So you got the scotch tape! I've been looking all over for it!
Quote from S03E03 - The Pen