My favorite horse story involves the LA Coliseum. I was in the Marine Corps mounted color guard out of 29 Palms, and we rode horses in parades and events all around So. California in 1973. This was for the North/South college football game, and there were 100,000 in the stands, and it was nationally televised. We led the parade through Pasadena, then into the Coliseum, once around the track, then rode the colors under the home goalpost. Everyone stood for the national anthem, and all eyes were on us as we presented arms and dipped the Marine Corps flag to honor the national flag.
Those who are familiar with horses know that a horse can take a crap on a full gallop, but for a piss it is a real production. Prince, my gelding rolled out about 2 1/2 feet of his unit, then proceeded to unload about 5 gallons right under the goalpost. I think that may have been where "The Wave" idea started, because you could hear the laughter move its way around the stadium as the folks saw what was happening. At the conclusion, my Gunny looked at me and said, "Lets get the hell out of here". We did just that, and I always wondered if anyone was tackled in that little pond we left behind.
Pardon me CC if I diverted from NASCAR, carry on.