An example I am using is of man that has a dark side. The best thing about him is that he uses his dark side for good and lives by a set of rules that helps him control the monster inside.ights typically have a clean life and they don't like to get their hands dirty unless it is necessary. Here on the clip we see the Dexter lives by a set of rules that help him throughout his life.

http://www.youtube.com/watch?v=sJSXM_OeoaE