To the O.P.:
Here is a link to a video of a man by the name of Sgt. Rory Miller. He has written a book that I believe may be of some use to you. It's called "Facing Violence: Preparing for the unexpected". I
highly recommend it!
To those of you with martial arts experience, I recommend his second book: "Meditations on Violence: A comparrison of martial arts training and real world violence: You will benefit!
GregsMartialArts - YouTube