Fairy tales have always had an antagonist; an evil witch or vengeful pirate, plotting against the beloved hero, but not all stories are realistic. There are villains out to get you, but they can be a lot closer than a broom ride away. The ones glaring with glowing eyes from the shadows emerge and you recognize that reflection.
Sometimes the one preventing you from completing a task, celebrating a victory, or capturing the damsel. Is because the distress is yours and the hand locking it away can be your own twisting the key.