We've all been disappointed when a good employee decides to work someplace else. Instead of getting emotional and expressing too much disappointment, wish the departing employee the best and ask if you can stay in touch with them.

The fact is that many new jobs don't work out, and it's possible that in three or six months that person may wish he or she had his or her old job back. Most people are reluctant to contact a past employer, but would consider coming back if you make contact first. Some operators never let a good employee leave without verifying their contact information and contacting them after a few months, "just to see how things are going."

Most ex-employees don't return, but when they do you know exactly what you're getting, and they're already trained. Returning employees are often better when they come back because they appreciate their jobs even more after working someplace else. When you lose a good employee, be careful not to burn any bridges. Try to find a way to maintain contact, and someday they may be a valued employee again.