The New Zealand Railways Magazine, Volume 14, Issue 4 (July 1, 1939)
Two Irish farmers, keen rivals, entered their horses in a steeplechase. One of them engaged a crack jockey to ride. The two horses were leading at the last fence, when both jockeys were unseated. The expert jockey quickly remounted and won the race.
On returning to the paddock he found the farmer fuming with rage.
“Why, what's up?” he asked. “I won, didn't I?”
“Yes, you won,” roared the farmer, “but on the wrong horse, you idiot!”