Was the timer operator, had a gent point a shotgun at my head (pointed directly up range) when he turned around to head for the unloading table. Called him on it. He said I should not have been standing there and blamed me for his error. Packed up his stuff and left. Next time I saw him he was selling all his cowboy stuff and getting out of the game.
40 LPI checkering on the back of the front sight. Takes away the glare. No problems since.