I think cain + abel answers the question, "Why do I and other
   people, sometimes do bad things?" The VERY FIRST TWO BROTHERS in
   the Universe - and one kills the other. well, if they were THAT
   close to Eden (their parents (clones - DNA from Adam's rib made
   Eve via space aliens) - and still one killed the other - what
   chance do WE have of being good? and yet - for the most part, we
   really are. "