Power
You're working in the service industry. What's the first rule of service? Yup, the customer is always right. But—if the customer doesn't know anything about cars like most people don't, they have to rely on you. There's a whole lot of power in knowing a trade that nobody else has any clue about.
What's that noise? Is there a maraca in my car? No, Susan, your engine is failing. See how fun that is? There will be so many clueless people coming to you asking about their car problems, you could tell them just about anything and they'd have no choice but to trust you.
There are some real jerks out there who could even lie and make Susan pay for a new belt, fuse, muffler, brake pads, alternator, and some new windshield wiper blades, just because they can. You wouldn't do that, of course. But you could.
Let's face it. The world isn't just brimming with respect and awe for the working man. Your customers won't necessarily see you as a powerful person, but you know better. After all, knowledge is power. And knowledge of cars is truly a sort-of-rare power.
