I saw a perfect example in the goose field last week. I was hunting with a friend who is normally a very good shot. A single goose came in on his side, offering a 25-yard crosser. He missed behind it with all three shots. I saw clearly over his shoulder that his gun was pointing behind the bird's tailfeathers every time he pulled the trigger. After his gun was empty and the bird was gone he asked me, "Was I too far ahead of it?"