Reminds me of my introduction to the SA80.Technically also NDed one as well, if you count a burst of automatic when the order was single rounds. Some range staff have no sense of humour.
"Single rounds, in your own time, etc.."
"Sir, my change lever's on A."
"Shut up and fire the thing."
"Yes Sir." Braaaap.................
Thing is, he didn't even notice.