:?: How is that... relevant? Anyway, I think that these people either didn't know what had happened, and/or were REALLY annoyed at anything which made their queue even slower. I think that both were the case. Since the queue was described as 'long', and considering this is the entire load of passengers for a plane, I seriously doubt that everyone actually saw the heart attack and so were probably just booing the staff as they went past, assuming that they were really doing something pointless and wasting time. I bet the booing stopped abruptly when they saw a dead body being wheeled the other way on a stretcher. And yes, airports do sometimes show the worst of people, but that is exactly what excruciating boredom and tiredness does. I'm sure we've all been through it at lease once. maybe listen to it and find out?