Heels down. Toes out. Squeeze with calves, not knees. Lighten up on the reins. Sink your butt into the saddle. So began my first riding lesson at the Arizona Cowboy College in Scottsdale which was followed by instructions in grooming, shoeing, advanced riding techniques and roping. And this was just a one-day primer to what other “city slickers” channeling Billy Crystal experience in their five-day cattle drive at the College...