Making sure he is steady, horse trainer J.P. Dyal, 44, unholsters a pistol he uses as part of a training session as he hurries to break a blindfolded mustang named Moose. Dyal, a former financial adviser turned horse trainer, competed last week in the Extreme Mustang Makeover in Reno, Nev., where he finished in fourth place. The blindfold was used as part of his training and performance. He and other trainers had to break mustangs in less than 100 days so they can be adopted.