You’re driving your engine to the scene of reported structure fire as part of a multi-company response. You’re navigating traffic on a heavily traveled thoroughfare and you’re fast approaching a controlled intersection. What should you be prepared to do? Stop! That’s the first lesson I always imparted to firefighters when I was teaching them how to drive fire apparatus. In that situation, you are the professional driver and you have to be prepared for the unexpected to happen, I would tell them. You must consider every other driver to be an amateur, especially when they look up in their rearview mirror and it’s filled with flashing red lights.