Chris Farley as Shrek

Donkey: Oh, this is another one of those "onion" things.

Shrek: No, this is one of those "drop it and leave me alone" things.

Donkey: Well, why don't you want to talk about it?

Shrek: Why do you want to talk about it?

Donkey: Why are you answering the question with a question?

Shrek: Why are you asking questions I don't want to answer?

Donkey: Why are you blocking?

Shrek: I'm not blocking.

Donkey: Then why do you have problems expressing your wants?

Shrek: I don't. "I want you to shut up". See? No problem.