My father taught me to shoot a gun when I was nine years old. When I was ten he sliced open the back of my leg and showed me how to suture my own wounds. At eleven he broke my arm and abandoned me in the wild for two weeks. At age twelve I was taught to build and defuse my own bombs. He began teaching me how to fly planes when I was thirteen. He never did teach me how to ride a bike. I figured that out on my own.