My guy, Sunny, has some cow in him. Seems it came naturally! The broker I got him from told me this story:
He had been sound asleep, when he was awakened by sirens. A tremendous thunderstorm was raging, and s multi-car accident had taken place on the highway nearby. He was a trained emergency med aide, so he grabbed some clothes, and ran to the barn, grabbing the first horse ho could, tacking him on the fly, and off he went to assist. Thunder, lightning, sirens, flashing lights, cars, screams...all going on at once. It wasn't until everything was over that Dennis realized he had grabbed Sunny Jim, a horse he really didn't know anything about, much less if he could (or would!) be calm in an intense situation! He told me that all through this, Sun would do what he was asked without a moment's hesitation. He also had an episode with cattle getting out on that same highway, grabbed Sun, and herded them all back. Turns out the previous owner(s) had NEVER used him with cattle! Sun just knew what to do, and was completely engaged with Dennis. Cool!