Back in the day, there was a horseplayer in the Barbary Coast (named Ruby) who loved to bet speed horses.
From the quarter pole to the eighth pole, he would stay quiet until his selection opened up an insurmountable lead.
And then from the eighth pole to the wire, he would scream at the top of his lungs, "DON'T FALL OFF...DON'T FALL OFF...DON'T FALL OFF."