If you would test the soul of a friend, take him into the wilderness and rub elbows with him for five months! One of three things will surely happen: You will hate each other afterward with that enlightened hatred which is seasoned with contempt; you will emerge with the contempt tinged with a pitying toleration, or you will be close, unquestioning friends to the last six feet of earth-and beyond. All these things will cabin fever do, and more. It has committed murder, many's the time. It has driven men crazy.