One of the main characters, the kid with the rat-tail, kept rocking himself back and forth. Almost constantly. That's a sign of insanity.
That kid's hair was pretty long. Gee, what does the Bible say?
1 Corinthians 11:14 (King James Version): "Doth not even nature itself teach you, that, if a man have long hair, it is a shame unto him?"
Ah well, we're all sinners I guess