"I have a secret weapon against the Joker, you know? It's a super, super secret weapon and it only really works for me, if I use it sparingly." Edward didn't mind telling her secrets. He felt it was part of making her be good at keeping them. Had to trust her. Besides, there weren't exactly many she could blab this to, nor would the effect be replicable for literally anyone else. "When he gets too scary, I try and look into his eyes and I call him Jackie. That usually works."

It was the ultimate safe-word. Which was why he made sure to only ever use it under extremely dire circumstances. "But Scarecrow, he's a lot easier than that. For me. So don't worry, Halloween will be fun for you from now on. And for Christmas, honestly, we'll just go somewhere else. Maybe to the mountains, you can learn skiing."