The bold, and large red letters comes across as aggressive and yelling in postings. The red as angry. Please ask nicely next time.
You can get an idea of what we do at my blog:
www.northwestcqc.wordpress.com
I am a police supervisor and use of force trainer and teach a small private group. I've taught cops, citizens, and military full spectrum self protection and officer survival force concepts for nearly two decades. I am familiar with, been involved in, responded to, and investigated everything from simple street confrontations to deadly force encounters. And I have found the assessment and threat management aspects, force on force simulations, and scenario based training to be the most effective kinds of training.
Sounds like you have a good handle on self defense training - when you say strangers, do you mean unknown people, but the students and strangers are all "in" on the training?
How does scenario training NOT stimulate the responses you are looking for? I ask this because in the law enforcement and self defense communities this is the primary way of including stress inoculation in training.