The Doctor: It's just a nightmare, Reinette, don't worry. Everyone has nightmares. Even monsters under the bed have nightmares.
Reinette: What do monsters have nightmares about?
The Doctor: Me.
—Doctor Who, "The Girl in the Fireplace"
I didn’t have to give a response. Fear was a tool I could use, here, and I could achieve that through uncertainty and the unknown.
I’d been thinking of Jack Slash before, but now I was thinking of Bakuda. She’d been the first one to introduce me to that concept.
—Skitter reflects on the lessons she's learned, Worm
Batman: "When the mugger or the thief stops to think twice: that is fear. That is what I am. That is why they hired assassins, because I am the reason that criminals breathe easier when the sun rises. So no, Alfred, I am not in over my head! Tonight will not be my end. But it will be theirs!"