... trapper's food and trap-baits, and at the same time avoiding the traps set for him. He is wonderfully expert in springing steel traps for the bait or prey there is in them, without getting caught himself. He will follow up a trap line for miles, springing all traps and devouring all baits as he goes. Sometimes in sheer wantonness he will throw a trap into a river, and again he will bury a trap in deep snow. Dead martens in traps are savagely ... — The Minds and Manners of Wild Animals • William T. Hornaday