Most hair that people get on the deer comes from using the knife the wrong way. Don't cut through from the outside of the hide. Lift it, get a starter hole and then slide the knife along under the skin cutting from the flesh side towards the outside. That way you're not cutting hairs and will not have them flying all over the place. Once you get it working right you'll see it's much cleaner. Once you get the deer gutted, if you're gutting it, and get whichever end you're working from loose, most of the rest is done with hands and an occasional knife blade to keep it moving.