1) I had handed the timer off as I was on deck and was standing off to the back left of the bay. Was a facing up range start and a fairly new shooter. I heard the RO remind him to turn, then draw. He drew, then turned, and his finger had moved to the trigger as the barrel swept by my chest. I consciously waited until he had gotten past me before yelling stop.
2) The RO had finished shooting and removed his gear, but was running shooters while holding an open beer.