Can An Employer Force You To Quit?

One question I'm surprised I've never gotten here at AOL is one of the most common questions I get in my law practice. That is, whether your boss can force you to quit. Sometimes, a supervisor will try to make you so miserable you'll quit, but some will come right out and say it's time to turn in your resignation.

What are your rights if your employer shoves a resignation letter in front of you and tells you to sign? Should you resign when asked?