I too, could not agree with the statement above. I smile too much. I want them to show--Instructors are to leave problems at home!! I want to know also they I do love what I do and subject as boring it can be, will be exciting and yet needed for the future in health care. It is hard to present instructional material where students are already falling asleep or bored, That is when I stop lecturing --if a nice day, we take a break a go for a walk around our building. Fresh air...helps, plus it clears the mind. 10 min that is all it takes..and students come back refresh, plus I do let them go to the bathroom before we begin...