Never. They're the same thing. My goal everytime I go to the woods is to kill a deer. Oh I have great times without killing.... but my mission is to put blood on the ground. I've killed a lot and hope to kill some more. Some people get all wrapped up in this touchy touchy feel good stuff about "it's not the kill"..... but really it is. If we're not trying to kill something why carry a bow or a gun. Grab a camera and become a yuppy. Some are more proficient than others. That's the way it is. We all get enjoyment from the hunts no matter our level of success. We're hunters trying to kill. Anything else could be said to be gravy or icing on the cake.