Keep your cool.
A task that many leaders strive for, but we don't always achieve. It is amazing to watch people panic. If the leader is calm, then his people are calm (usually). If the leader freaks... well, I think you can figure it out.
Below is a video of a man who kept his cool. I think he deserves to be recognized, too bad I don't know his name...
I received this as an email, but thought I should share.