I was teaching a class just a few weeks ago on using your environment as a weapon; specifically, how to use the wall (or vehicle or any other hard structure) at your back as a tool instead of an obstacle. The basic threat scenario started with just a single hand choke used to slam the student against the wall with an incoming punch from the non-choking hand. The concept was simple: use the wall to your advantage. These were all experienced students with higher than average skills. After demonstrating a couple of different options I was letting them have at it. I wanted to see how many different ways they would find on their own to deal with this scenario.
Long story made short:
I ended up having to show (some of) them, step-by-step, how to use the wall not only as an impact weapon, but as a controlling tool to limit the opponents mobility, maximize the damage from strikes, and even using the wall as an abrasive tool as you drug the opponents face down the wall to the floor for various finishes.
Some students grabbed the concept and ran with it; had some pretty cool stuff happen in those scenarios. Some students needed a play by play commentary. I was kind of surprised; the only thing that was new (to some) was the use of the wall. All of the techniques and strategies had been covered before.
I know the problem with one student in particular is he wants to do everything "right"; even though I tell him that the only "right" thing is to be able to end the threat and get away safely. He's a great student and has improved tremendously over this past year, but I haven't been able to get him away from analyzing the particular techniques to defeat a scenario and just focus on the concepts of the exercise.
I know this is an instructor problem and NOT the fault of the student. I prefer to teach a concept and let people use the techniques we've trained in their own way, in their own "style" to defeat the opponent in any given scenario. I feel this will give them confidence to deal with any situation as it unfolds, rather than be fearful because the assailant is not behaving or reacting as someone might have in class.
So, I still think I'm doing the right thing by focusing on teaching concepts rather than a step-by-step, technique-by-technique approach to each scenario. Most folks seem to get it. But sometimes, I do wonder.

I'll be going over this material again next week (it was a big hit with the students, at least!) and see if anything is different. Any suggestions would be appreciated.