Adam, we should stop thinking that we will be in a rural area whan disaster strikes - where we can batton wood properly. As a citizen of Long Island you should realise the first things you are going to encouter after a storm or an earthquake etc. is steel, concrete, brick. Maybe you get trapped indoor. You nore I have enough imagination to anticipate what exactly can happen. But as Ironraven points out you will find yourself in rubble of every kind. Offcourse you should use proper technique but what if your not able to? The tests on seem random but they are an exemple of order, technique and tidiness compared to a real situation.