Bibwit: Old thread
Somehow it lead to a game of Mornington Crescent.
Skids: You know what they say about finders-keepers....
Also from Tolkien, I would suggest Feanor. He killed his own kin (lots of them), lead his people away from paradise in search of some jewels that he had made (the Silmaril), when he was defeated he swore an oath that ended up killing all of his sons and he plunged his people into a fairly hopeless war over the jewels.
'We're all mad here. I'm mad, you're mad." [said the Cat.]
"How do you know I'm mad?" said Alice.
"You must be," said the Cat, "Or you wouldn't have come here."
- Lewis Carroll, Alice's Adventures In Wonderland