Before the San Francisco Giants and Washington Nationals engaged in the longest-ever playoff game on Saturday, U.S. Army veteran Brian Keaton was called upon to warm up the crowd and throw out the game's ceremonial first pitch. Needless to say, he delivered in both a creative and entertaining way. Summoning his army training, the Iraq veteran crawled to a position just behind the mound as if he was in combat and tossed the baseball with his left hand, grenade style.