The closest I've come to such a crisis was a big earthquake in Seattle a few years ago. I was at a meeting in a ground-floor conference room at Microsoft when the tremors started. People shouted, "Don't run outside, don't run outside"—that being the one piece of official advice everybody remembers. Then, after a very long two or three seconds, everybody ran outside. Including me. That's not courage, and it may not be wisdom. But it's instinct and it's irresistible. I'd do it again, whatever they may say.