Did anyone ever think that maybe there was a connection between Luna and Lupin? What if Luna was a werewolf and her mom died trying to cure the werewolf disease and was killed by Luna who was bitten as a very small child? It would explain some of her odd behaviour and also they're both called loony at one point in time or another, so it could be JKR linking her to Remus. Also we don't see her til fifth year so maybe she's very quiet and secluded to protect herself from being discovered? You'd think they'd get rid of the whomping willow after it hurt so many students and with Remus not being at school anymore. I think I'm going to use this in a fic if I can, but I wondered what everyone else thought.
-Jake