Harry potter fans were great, just as the one from LOtR (there nothing like people dressing up as hobbits to start the party going!).
I DO have a problem with the TWILIGHT fans tho. They are just... overly inappropriate. They don`t want to go to what ever the town is. Or have a nice chat and dinner with the characters... Right on the edge, if they want to be a vampire, well that`s weird but your know... as long as they don`t hurt themselves or anyone... They want to have Edward`s babies. Actually they want the baby making action... They RAGE over Jacob quite aggressively. And the story is not about how friendship helps you or how to deal with new civilizations... No, it`s about a abusing BF and a serious case of psycho GF who define herself by her BF. It should never be obsessed over.