even a lung shot skunk will spray, there really isn't any good way to shoot a skunk without it spraying. The best way to catch and kill a skunk without making a huge stink is to catch it in a live trap, use a smaller live trap that the skunk can't stand up in, they have to stand up to spray well. Leave the trap in a cardboard box and bait with sardines or a can of tuna, when you catch the skunk leave it in the cardboard box. Take a piece of metal flex hose, like is on a dryer, and run it from your tailpipe of your truck to a whole cut into the box, let your truck run for a half hour or so and come back. The skunk will just got to sleep and never wake up, carbon monoxide poisoning. They still might spray a little bit but it won't be nearly as bad as if you shoot them or leave them in a position that they can stand up in. I have used this method several times, works like a charm.