During the day Wendy “Bo” Mueller, 46, is a sales assistant in the advertising department of CableOne Advertising in Sherman. At night and on weekends she becomes Texoma’s newest soap star—mixing up batches of exotic, all-natural, aromatic soaps in her rural Denison soap kitchen.

“What you’re looking for is a partnership when you train them,” he said. “The horse responds to what you ask freely and without resentment, willingly. When you break horses, you’re breaking their will. They do the job but they don’t do it willingly. He [the horse] needs to be part of it. You need to be able to express what you want in a way the horse understands.”