A few years ago a guy came in to work to give a basic self-defence classes. After filling us with fear-mongering stories ("And they'll knock on your car window, you'll roll it down, they'll squirt petrol in your face, rape you and steal your car. It happens. It just never get into the media because the police don't want copy cats."), he taught us how to kick a bag, and then taught us how to kill someone with one simple move of the hand. Oooh.

So a reality-based self-defence class sounds like a good idea indeed.