I finally went to Huntington Park to see the Columbus Clippers (the Indians' AAA Minor League team).
During the game they had a golden retriever named Jake, as the 'bat boy'. He was fantastic. He runs out after someone gets a hit, grabs the bat, and brings it back to the dugout with his tail wagging the entire time. He brings water to the umpires. He catches frisbees between innings. He is a good dog. And the Clippers won 11-0.