LEELA: Strange. I feel fear. Why should I be frightened?

K9: There is a chemical inhibitor in the air, mistress. I have analysed it.

LEELA: What does that mean, K9?

K9: It means you feel fear because it affects the human nervous system and debilitates the will.

LEELA: You mean there's nothing to be afraid of, just something in the air?

K9: Affirmative.

LEELA: Right. Come on.