According to the legendary Sam Snead, golf is the most frustrating sport of all. "One day you are up on Cloud Nine and the next day you couldn't scratch a whale's belly," he once famously said. Like many of us who play the game, he understood that few sports offer more opportunity to make complete fools of ourselves than golf. For anyone from the most celebrated professional to the lowliest hacker, it can appear deceptively easy at times, and virtually...