My only experience with it was watching my mother almost destroy her life over a married man that she worked for. She was dating her married boss for two years before she found out that he had three other women on the side. After which she had a nervous breakdown and moved me and my sisters to another state (in the middle of my senior year!) She has since met a wonderful man, who has become a great husband, and the best step-father a girl could ask for. But, in my opinion, you're better off staying out of sticky situations such as relationships with married co-workers...or any married person at all, for that matter!