“In the world of close-quarters battle, it’s widely understood that stairways are highly dangerous places when working as part of a team and should be bypassed whenever possible. When working alone, stairways become an area to be avoided at almost any cost. But there are times when it’s simply impossible to stay out of a stairwell, especially in an emergency. The threat in stairways is so high that, barring some overwhelming priority of life issue — like there’s an active shooter in the office and the building is on fire and your kids are downstairs — you should avoid them altogether. Sometimes barricading and waiting for the problem to come to you is the right answer. Having said that, sometimes the dumpster really is on fire, and you have to suck it up and jump in.”

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