Your building collapse classes tell you how they happen, what causes them? Or does it explain the hazards to look for while undergoing operations and rescues? Because unless they are explaining HOW, WHY, WHEN buildings collapse, they are useless as evidence of some kind of authority on building collapses. Hey if i want to know what the best way to get a gurney to a woman trapped under live electrical wires you will be my first call, but if I need someone to explain to me how a Column of steel and concrete just up and disappears i'm going to call someone with a bit more experience than 1 building collapse class. Not saying you aren't the hero and all, everyone knows you firefighters risk your lives 10 times harder than anyone else.