"I've had to use my stop-work authority a few times when I was concerned that the job wasn't being done safely. It's always a little nerve-wracking to do that, but all of my employers have encouraged us to speak up when we aren't sure or know that something is being done incorrectly. We would all rather have to stop and take a step back than have an accident happen. A specific time was when a new guy was being trained, and he was always so busy watching what others were doing that he didn't really seem to be aware of his surroundings. I walked in one day and saw that he had created an unsafe situation--his tools were lying all over the ground while others were trying to walk around. I went over and talked to him about it, but he seemed more concerned with getting the job done quickly. I felt it was necessary to use my stop-work authority so that he would stop and realize he had created an unsafe situation. He was pretty upset at first, but quickly realized that I really did need to speak up for safety's sake."