When the gun was in his hands he explained its working to his hearer, and then took it apart, put it together again, and told Jack to do this, correcting his mistakes and telling him a good deal about guns in general and this gun in particular. Then he proposed to go out on the prairie to shoot at a mark, and told Jack to carry his gun and to hold it so it would not point at any one. "I'm always scary about a gun," he said, "and the older I get the more afraid of 'em I am. I've seen a heap of accidents in my time from guns, and once, when I was young, I came near killing my best friend, just by foolishness. So I like to see everybody as careful of a gun as he knows how to be. You've been told, I expect, never to point your gun at anything except what you mean to shoot at. This business of sighting your gun at people and animals, and saying to yourself, 'Oh, couldn't I just hit that,' is just baby play, and I don't think there's any need to tell you not to do that. There's another thing. Don't carry a ca'tridge in your gun unless you're expecting game to jump up in front of you any time. Don't carry your gun loaded on your horse. Something may happen. You may kill the man you're riding with, or his horse, or your own horse. In old times we had to carry our guns loaded, but since we've got these britch-loaders it ain't needful. I expect you'd feel mighty mean if you killed a man, just by your carelessness, or if he killed you the same way. I came mighty near getting killed that way once by an Indian I was travelling with. We sat down side by side on top of a high hill to look over the country, and he had his rifle across his knees with the muzzle pointing toward me, and he was playing with the hammer of his gun, raising and lowering it. I didn't like it very much, and got up and walked away, thinking I'd come back and sit down on the other side of him. In less than a minute after I moved, his gun went off, and if I had been sitting there the ball would have gone through me. I was scared some when I thought how near I'd come to being bored through, but I wasn't a patch on the Indian. He was scared grey. You see it was known that he and I were together, and if he had killed me by accident, it would have been hard for him to prove it, and he'd likely have got killed for murdering me. "We'll try the gun at that hill over there. Do you see that white rock, the small one to the left of that sage-bush? That's about a hundred yards away. Load your gun and shoot at that. First sight at the rock. See that the top of the foresight just shows over the notch of the hind sight. Hold the gun tight to your shoulder and pull the trigger slowly. Try to hold your gun steady on the mark, and when the sight is on it, pull. Don't load it yet."