Horn’s most notable professional baseball “achievement” occurred on July 17, 1991 when he became only the fifth player in MLB history to strike out six times in a game (there have been two more occasions since). This occurred during a 15-inning game with the Milwaukee Brewers, after which teammate and former Cy Young Award winner Mike Flanagan famously told assembled media- including baseball historian Tim Kurkjian- that, “from now on, six will be known as a ‘Horn’. Seven will be a ‘Horn-A-Plenty’. When you make history, you’ve got to put your name on it.” Baseball writer Paul Dickson has included the “Horn” in every version of The Dickson Baseball Dictionary since.