On August 1, 1945, during the eighth inning of the first game of a doubleheader at Griffith Stadium in Washington, the Philadelphia Athletics second baseman Irv Hall picked up a hit in an unconventional manner when he smoked a ball right back at the Senators starter Dutch Leonard. The hurler lost track of the ball momentarily, before he realized that somehow the ball got tangled up in his uniform and ended up in his pants. The crowd got a good laugh out of the spectacle, but Leonard had to get back to work. He had surrendered a run in the inning already and was holding onto a slim 2-1 lead with just one out when the incident took place. The hurler induced Hal Peck into an inning ending double play, before taking care of business in the ninth, as he helped his team hang onto win the contest by the same 2-1. It's safe to say a few laughs were had in the locker room after that one. The Senators also won the second contest 3-0.
Check out the box score here: http://www.baseball-reference.com/boxes/WS1/WS1194508011.shtml