Normal people should drill certain non-normal events (for example, all drivers should know how to deaccelerate and get off the road quickly).
But you should NEVER design a system that requires normal people to drill non-normal events; even planes have been redesigned to "fix" problems where the pilot had to do something unintuitive or unexpected, because eventually it WILL catch up to you.
This doesn't work for normal people because normal people don't drill non-normal events until the response is instinctive.