Darren Laur has some very good information regarding self-defense and safety. In the book he wrote with Beth Laur,
Total Awareness, he includes a simple way to remember basic principles self-defense techniques should follow.
Self-defense techniques should follow the
SAFE principle.
Simple to use and easily learned and remembered over time.
Adaptable to any physical confrontation, be it walking, running, driving, sitting, or lying down.
Fast - the techniques taught must be designed to immediately incapacitate (stun) the attacker, thus allowing you a chance to escape (run). Your goal is not to win the confrontation, but rather to survive it, both physically and mentally.
Effective - the techniques taught should be 90% effective on 90% of the population 90% of the time. Nothing is ever 100% effective in self-defense. An instructor who claims otherwise is not dealing with reality and should be avoided.
The self-defense program should incorporate the psychology of combat into the training. The mind guides the body. If you fail to train your mind to cope and deal with fear, regardless of the physical skills learned, you will not be able to defend yourself.