Power
Let's face it—you're a power junkie. You love pushing those weights around, showing them who's boss. You love the look people give you as you walk past them on the street as they realize that you could crush them in between your thighs like a walnut.
Unfortunately for you, the power you feel when you've just completed your fiftieth straight dip is more than you'll experience in the day-to-day routine of being a trainer. You have the power to inspire and motivate your clients, but you'll also get dropped on a regular basis by those who have had enough, lost interest, or can no longer afford you. In fact, most of the time, you may feel quite powerless.