Apprentice. Salary: Big Fat $0

Your master locksmith has you hunkered down in the storage room categorizing every key in the shop by make, model, and type. You swear he threw in some strange pieces of metal just to mess with you.

Registered Locksmith. Salary: $30,000 (Source)

Just as lunch arrives, you get called to your second locked car door job of the day. You take a half second to decide whether the job or your sandwich is more important. You pack your sandwich in a bag and head out the door.

Senior Locksmith. Salary: $41,000 (Source)

You get into your mobile lock shop van and wave your goodbyes to the elderly lady standing on the porch. Mrs. Peanman is a wonderful lady, but you're starting to wonder if she's locking herself out of her house intentionally. You linger just long enough to make sure she gets inside before heading back to the office. After several years with your company, you know it's only a matter of time before you're jimmying the door open for her again.

Emergency Locksmith. Salary: $75,000 (Source)

You're the person your company sends out in the middle of the night or while everyone's hunkered down by the fire in the midst of a snowstorm, rushing off to help people while the rest of the locksmiths sleep or sip hot cocoa. Do you groan sometimes when the phone rings? Absolutely—but you also grin when you get your paycheck.

Company Owner. Salary $82,000

Leaning back in your chair, you admire the coverage area map you have tacked on your wall. It's a fairly large map. You also admire the selfie of you and Aaron Rodgers on the wall—your little souvenir for doing all the locks at Lambaeu. Enjoy this moment of peace, though, because it won't last long. It never does for the person calling all the shots.