The Most Unhinged Fictional Characters Ever Written

At least some (most?) of Allison’s unhingedness is due to the shock and trauma of a head injury, but that does not change the fact that throughout so much of the book, the reader is going, “Oh, please don’t do that, please don’t do that.” Allison’s decisions are hilariously, endearingly, dangerously divorced from what you would expect from a stable person.