I run the scenario past my friend LG, a.k.a. Laurence Gonzales, contributing editor for_ National Geographic Explorer_ and the author of Deep Survival: Who Lives, Who Dies, and Why-_a stunning bit of required reading if you plan to live through regular exposure to risky business. "My first rule of survival is perceive and believe," Gonzales says. "That means you accept the clear evidence of your senses and not engage in denial like 'maybe it'll get better'. Pilots call what you did _get-home-itis. It can kill you. We live in a culture that tells us, through subtle and constant rewards, that we can make our own rules and get away with it. Most of the time, we can. Then comes the real hazard and suddenly we can't anymore."