Do you really think that a person can misinterpret a fire alarm with the huge cloud of smoke? Of course, you can assume that others know something about it. But

Do you really think that a person can misinterpret a fire alarm with the huge cloud of smoke? Of course, you can assume that others know something about it. But then the logical thing to do is to ask for this knowledge, the knowledge that contradicts yours. Demand a proof, solve your inconsistency. Maybe you're hallucinating. Following blindly is not a reasonable choice, if this contradicts your own feelings. There is no reason to investigate something if it doesn't contradict your knowledge. It's reasonable to investigate the "Dead End" sign only if every other driver goes under it. Because this is inconsistency. And not to drive just like others, but ask for an explanation first. Yes, those "heuristics" may be good enough in a lot of situations. Just like instincts, they can be useful too. But we can't let instincts rule over our rational mind. This doesn't work. There would be no civilization in such case.