I let a man I really didn't know at a public range try a shot on my prone rifle that had a Davies bench rest trigger set to about 8 oz. I told him over and over that it was a very touchy trigger. Over and over he said he understood. Then he closed the bolt and promptly lauched a bullet to the left and over the top of the back stop. I was way nervous about where that bullet ended up and if it struck anything. He was not given a second round. Lesson learned, just because a guy is friendly does not qualify him to shoot a specialty rifle. I am a lot less generous with my firearms.