Good Question, the biggest mistake that I made as an inspector at WSSC, was putting all my trust in one of my co-worker, when you have work with someone for as long as I have/did, you build life long relationship with them and you start to trust in them, it is like a bond, you hear everything that they are going through health wise, after years you start to care about people well being, and sad to say sometime, you can not mix friendship with business, in other words, you can not THINK with your HEART, USE YOUR HEAD, NOBODY CARES ABOUT YOUR WELL BEING BUT YOU.