>>6378
That's a very interesting wiki page. It reminds me of hearing Hal Needham talk on a podcast about his early days as a stuntman for westerns. He said horses were pretty cheap so they didn't care too much what happened to them. He said a wire ran from the front hoof to the saddle, so the rider could pull back and trip them.
I can't find verification of this method but here's one that's more brutal
http://www.b-westerns.com/stunt.htm
> Running W: wire and cuffs were attached to horse's forelegs and run through slip rings on the saddle cinch underneath the animal. The wire was anchored to the ground via a stake, and when the wire went taut as the horse galloped along, the legs would be pulled up toward his belly, causing a tumble. The running W was banned circa late 1930s. The story goes that there were dozens of horses killed by the running W during the filming of the Errol Flynn THE CHARGE OF THE LIGHT BRIGADE (Warners, 1936). The replacement for the running W horse trip and fall was specially trained horses that could take a fall.