As children, humans are told there is no such thing as monsters. Nothing hides in their closet at night waiting to jump out and scare them. They’re nothing but a bad dream, a nightmare.
A dream can’t hurt you, no, but dragons know monsters are no illusion, they aren’t just a dream. They are real and can hurt those around them. They are usually just feral creatures acting on instinct.
But when monsters have a master to control them-
You best hope someone will rise to the challenge and triumph over them.