I have a slightly different situation. I am not a classroom instructor. I am a clinical coordinator and have to visit students while out on their externships. This requires a different approach to getting students to follow policies while with "strangers" and still enjoy the learning process. I only see my students for a few hours per week and it's a constant struggle to maintain that much needed balance with them. I still would never pass up the oportunity to see that "ah ha" look in their eyes when they realize that the instructors they had knew what they were talking about.