My younger sister is truly the expert of the family.
Whenever there's something I want to know, like 'hey, sis, quick, who was the twelfth king of Numenor?" I ask her. She's the most obsessed one in the house. With me ranking second, and mom still waiting for the right mood to begin reading Silmarillion. She loves LOTR though.
I've been persuading my sister to register here since forever, but she's not that fond of computers, so she prefers to watch what I show her from time to time.