Sometimes it's for more money, sometimes it's for a better opportunity, but more often than not, your best employees leave for a different reason: you.

Oddly enough, though, I never left a job because of my boss. (I did leave one job because my boss told me I couldn't come back, but that's different.) So while I know great employees often leave jobs simply because they can't stand working for their boss, I'm not a great source for specific examples.

That's why I turned to someone who is: Eddie Loussararian, a trainer, professor, and the author of When Bosses Go Wild: Preventing Employee Morale Knockouts.

Check out his top reasons why the best employees quit, and then add your own in the comments below.

Here's Eddie:

It's pretty amazing how often you hear managers complaining about their best employees leaving, and they really do have something to complain about--few things are as costly and disruptive as good people walking out the door.

Managers tend to blame their turnover problems on everything under the sun, while ignoring the crux of the matter: People don't leave bad companies. They leave bad bosses. They don't leave flawed organizational structures and abandon lousy products and technology. They leave flawed leadership.

Do your employees feel like their 9-to-5 is more like 9-to-eternity? Do they complain about bad or ineffective bosses who damage their emotional well-being, intimidate them, or don't respect them? If so, achieving a good relationship with your team could be the most important move you can make at work.

Here are 12 supervisory traits that will cause employees to want to quit their jobs and look for greener pastures elsewhere. See if you recognize any of them:

  1. The Credit Snatcher: taking credit for someone else's work
  2. The Talking Out of Both Sides of Their Mouth: sending mixed messages
  3. The Conclusion Jumper: responding before having all the facts
  4. The Know It All: believing you have all the answers
  5. The Over Talker: talking over others during meetings
  6. The Skeptic: not believing anything others say
  7. The Information Hoarder: not providing enough information to complete projects
  8. The Fail to Recognizer: not recognizing employees for a job well done
  9. The Late Night Worker: expecting staff to continue working from home
  10. The Comparer: comparing one employee with another
  11. The Overcommitter: taking on more work despite not having the bandwidth.
  12. The Executor: stressing out employees so they can look good in their boss's eyes.

The words managers speak to employees are powerful. They can either destroy morale or build employees up.

Care for your employees' well-being. In some cases, you may be the only person in their lives to speak words of encouragement. Choose your words wisely and make them count.

Now it's your turn. Have you quit a job simply because of a bad boss? If so, why?