19 signs your boss is about to quit

It can be difficult to concentrate when your boss seems to have lost interest in their job, the company, and maybe even you.

"If you feel as if your manager has 'checked out,' it's a natural reaction to want to know why," says Lynn Taylor, a national workplace expert, leadership coach, and author of "Tame Your Terrible Office Tyrant." "Now it's time to put the puzzle together to evaluate whether they may have one foot out the door."

She says that if you suspect your boss is about to quit and you remain vigilant, the signs will become increasingly apparent:

The behaviors are far different if your manager is not performing to par and is trying to preempt termination, versus wanting to leave for greener pastures. But the common denominator, regardless of the reason for the impending departure, is a change in routine.

It's important to pay attention because your boss' job status can be linked to your own job security and affect your career - for better or worse.

Here are 19 signs your boss is about to jump ship: