It’s a chilly night, and I’m out in the forest with some friends enjoying a meal by the campfire. The chill is against our backs as we chow down on some baked beans and hot dogs, which taste twice as good mixed with the smell of smoke in the cool night air. Our conversation is woven with laughter, which occasionally sends mouthfuls of half-chewed beans into the fire. It’s one of those good nights. As the fire turns to glowing red embers, we zip into our sleeping bags and begin to drift into slumber.