The "Man Trap"
A "man trap" is a shelter that could collapse on its inhabitants causing injury or even death. Just because you think a log or a ridgepole will stay in place, doesn't mean that it will. The rule here is to set up the main structural elements of a shelter in a way that they support their own weight, plus more. Snow loads, heaped-up roofing material, and even rain will add to the weight that your shelter must carry. Build strong frames. Before you hunker down, figure out if the shelter can fall, and if so, where it will fall.