Duck and Cover

On the short list of martial skills: getting out of the way.  Is it going to hurt if you get hit by the soft focus pad?  No.  Are you going to feel it?  Yes.  Is it a simple feedback loop?  Yes.  Does it work – do students learn to get out of the way?  Sometimes.
Why only sometimes?  Because even martial artists (*cough*) need constant reinforcement and reminders.  Keep your hands up.  Keep your attention out.  Ten or twenty years later and the student might finally learn that first lesson: get out of the way.