In my first job out of school at a chemical process plant, I was assigned the task of determining why a tank of Dowtherm would periodically empty itself. After investigating, I discovered the outlet valves were not configured properly. I flagged down an instrument technician and we made the changes to the valve controls, and the problem was solved. I was very proud of myself, but my boss was horrified. We had completely bypassed the "Management Of Change" (MOC) procedure,