Find an empty parking lot where you can learn to gain control over your trailer without worrying about a long line of irate fishermen behind you. After you shift into reverse, place your left hand on the bottom of the steering wheel. When you move your hand to the right (which turns the steering wheel and the front tires to the left), the trailer will move to the right (a). When you move your hand to the left (which turns the steering wheel and front tires to the right), the trailer will move to the left (b). It takes a little getting used to (and your brain will fight you at first), but it works.