She stopped shrieking after a moment. It wasn't the crazy looks she drew from the other pedestrians that made her stop. And her damaged sanity hadn't managed to repair itself. She'd left something behind in that apartment. Something she'd always taken for granted. Faith in a rational world. It was like a tiny cog had been removed from her brain, and all the gears were still working, but a slight wobble was slowly and inevitably stripping the teeth until one day, without warning the Rube Goldberg device that was her mind would fall apart with a loud SPROING.