While this topic is certainly open for discussion, and it is unlikely we'll ever arrive at a final answer, I think I have discovered something which is certainly part of the conversation.
Today at work, they were testing the fire alarm system. So what this involved was a pair of guys going around to each and every individual smoke alarm and detector on sight, and sticking something over them which obviously mimicked smoke, and set of every single alarm on the facility. And since they're all tied into each other, whenever one alarm goes off, everybody hears it, no matter what wing you're in. For about 5+ hours, an alarm would go off, then switched off, then the next, repeat ad nauseum. Those guys must love their job.