
Dinner for Four / Phoebe Skips - S4-E5
Helga: I can't believe I told them the truth, and I wound up washing dishes.
Arnold: Come on, don't you feel better that you did the right thing?
Helga: No, not really.
Arnold: I think you do.
Helga: No, I don't, Arnold.
Arnold: You know Helga, I think what you did is pretty sophisticated.
Helga: Really?
Arnold: Yeah.
[Arnold sprays Helga with water and winks at her].
Helga: Oh, just shut up and rinse.

Mxyzptlk: Your three months are up! And this time you're not gonna cheat me of my fun.
Superman: Oh, it's you again, Mr. Kltpzyxm.
Mxyzptlk: NOT Kltpzyxm! Mxyzptlk! Now,  the first thing I'm gonna do - ah, nuts! [Disappears.].