Quote from Dick in The Thing That Wouldn't Die: Part One
Dick: Sally, she loves that we're aliens. And she loves the secret. She thinks it's sexy. Sally: Dick, as Security Officer, I have to take care of all security breaches. Any human who knows our true identity must die. Now, those are the rules, and I'm stickin' with 'em. [Don walks in] Dick: Okay. Fine. You're right. Sally: Okay, that's very mature. Dick: Big news, Don. There's something you should know about Sally, Tommy, Harry, and me. Sally: Okay, fine, fine! [whispers] I won't kill her. But this conversation is not over, mister. Dick: Thank you.