I just had a random thought, what if you were for some reason stuck in the wild forests or mountain and you had to deal with Tigers or other animals who were hungry to get you?
Well, just for that reason, for protecting yourself, you might want to learn how to build a tiger pit (trap).
Pretty simple but a good knowledge to know for survival.
first you need to dig a hole about 4 feet deep then sharpen about 20 three feet tall poles about an inch around then stick them pointing straight up then cover the pit with small sticks and leaves
But really, I am against killing of all kinds of animals for recreation or fun, I think killing simply is bad. Fishing is okay though in my mind.