I personally loved the drill, and would have ran it with barriers or the way that you had us run it. I didn't think any less of the others that chose not to do so, and can absolutely understand the hesitation. I thought it was utilized to great effect for those of us that had never been placed in such a situation. It is a stand out moment for me personally from the class, and an experience I will not soon forget. I, speaking only for myself, appreciate that you had faith that we could perform it safely.