Okay, this is something I'm wondering. Has there been a book that starred a character that was completely insane as the hero(anti-hero probably but still)? I don't mean quirky or just mentally different, I mean someone who has like severe schizophrenia for example. I also don't mean a story starring a serial killer, with the exception of the Dextar series, for the above reason. The closet example I think can think of is a book called St Juan, which starred a teenage girl with severe bipolar disorder. It was really great, but unfortunately it ended rather quickly(I think it was about 200 pages at most, and it felt like much less.) I bring this up because mentally ill characters seem rather rare as protagonists. We've seen many that are sympathetic, but they are usually regulated to antagonist roles. Why? Is it because we're scared of them so can't view them as protagonists? Or is it because so few people attempt even to write from such a viewpoint?