Brent had a recalcitrant horse whose disposition could only be described as nasty.  The horse was worked with for three years before it was sold to a bucking string for use in the rodeo circuit.

During the efforts to train it, Brent put a pack saddle on the horse, and turned him loose in the pasture to buck until he got used to it being on his back.  The horse bucked steadily for three hours.  Brent was standing with folded arms as he and Mary watched the ceaseless bucking.  The horse had bucked so much and so long that the saddle blanket had worked its way from under the saddle, out over the horse's rump, and was prevented from going further by the breech rig, which is a strap that goes around the rump and under the horse's tail.

Two other horses calmly grazed in the pasture a hundred yards away from where Brent and Mary were standing.  One was his faithful, personal horse.  Neither horse was paying the slightest attention to their bucking companion.

Brent said to Mary, "If I could get that saddle blanket…"

Before he could say, "…out from under that saddle…," his own horse, which had been placidly grazing, jerked his head into the air, and took off running full tilt toward the bucking horse.  Brent's horse seized the saddle blanket in his teeth, gave a mighty jerk, pulled the blanket off the horse, and went back to grazing.