He shifts a little uncomfortably. "People can be cruel. Monsters just want to kill you and get it over with. People... can be cruel."

He'd never seen what Sakaki had done, but he'd heard enough about it to know that it was nothing good.

"Monsters act. People think. And plan, and can trap you. They're scary because you know they can think like you, and people can think of some really cruel ways to fight each other."