Picture this: you’ve had a lovely day camping. You’ve just returned to home-base tired and hungry. You’ve been having so much fun, you haven’t noticed that the sapphire blue sky of that afternoon is being quickly replaced by an ominous-looking storm front. Suddenly, the severe weather sirens from a neighboring town start to blare. A minute later, a park ranger drives through your campground announcing over his vehicle’s loudspeaker that you can go to the...