To avoid navigation through the court system in a messy case, you should have an employee handbook for your company. This handbook should state that employee come to you first to settle any disputes they may have before talking to a lawyer. There have been many cases where this excerpt in an employee handbook could have saved a business from disgruntled employee backlash.
As an employment attorney in San Diego (http://wblawgroup.com/employment-attorney-san-diego.html), I would be happy to help construct a well written book for your employees to read and sign. I believe this is a wise decision, and very necessary if you end up in court. It could be used as evidence.