This is an anecdote from Dan Okrent and Steve Wulf's Baseball Anecdotes:
Thurman Munson, who died in the crash of his private airplane in August of 1979, was a great catcher, a pretty good hitter, and a team leader. He was also something of a mule, as this story told by former Yankees PR man Marty Appel attests:
Munson did not like being compared with Boston's handsomer, more stately catcher, Carlton Fisk. One day Appel quite innocently listed in his press notes, AL ASSIST LEADERS, CATCHERS: FISK, Boston 27; MUNSON, New York 25. Players rarely read the press notes, but on this day, Munson did. "What's the idea of showing me up like this?" he demanded of Appel. "You think for one minute he's got a better arm than me? What a stupid statistic!"
Munson stormed off. Then, during the game, he dropped a third strike, recovered, and threw to first base to get the batter. The same thing happened in the next inning, and it began to dawn on Appel what Munson was doing. A short time later, Munson dropped another third strike, thereby passing Fisk as the league's leader in assists by catchers.
Great story, although not necessarily exactly true as explained in this excerpt from the book Rob Neyer's Big Book of Baseball Legends.
Photo found at Flickr.