Earlier this season, Red Sox outfielder Jacoby Ellsbury was standing on third base at Fenway Park in the fifth inning of a nationally televised game against the Yankees. It was a relatively common occurrence in an otherwise common game, but the idea that entered the mind of the 25-year-old Ellsbury was a very uncommon one. It was a decidedly mischievous idea, one so rare and so daring that Ellsbury had never seriously contemplated it before, and had certainly never acted on it. But in that mo...