Tomorrow morning, Mitchell Edward Warner, III, planned to get the hell out of Harvard and return to the Oklahoma cattle ranch where he’d spent very summer since his birth. The place where he’d been taught to ride a horse and rope a steer without breaking too many bones. Where at fifteen, he’d fumbled his way through sex with a country girl down by the creek, high on adrenaline and teenager lust as well as the prospect of getting caught. By the summer of his eighteenth year, he’d gotten pretty damn good at all three…