Believe it or not. A buddy of mine took a shot on a spike elk. The elk whirled around and fell down. He thought it must have been a great shot. He watched the elk for about a half hour. When he turned away and looked back the elk was gone. All he had was an arrow with no blood and a patch of hair on the tree. Yes the elk actually knocked himself out. All he had to do was walk over and put a shot into it. Its not often that one will just lay down for you. He still hasn't heard the end of it.