So many of these questions were answered by a) Harry Potter, b) crime fiction, and c) literary classics, d) fantasy and e) young adult… I've decided I'm splitting those off into their own little subsects. Some of the answers are in here anyway. And you'll be able to link through to the other editions once they're live.
BookADay UK answered using Harry Potter. Including stories about how I've refused a second date because I couldn't accept this guy knew nothing about Harry Potter (and didn't want to find out.).