Free: Contests & Raffles.
Isn't that the whole point of hunting? To go outside and sleep under a tree somewhere.
Back in 03 I caught my hunting partner sleeping on a rocky bluff while Elk hunting, I snuck out and grabbed his rifle, snuck back to the tree's and let out a few cow mews you should have seen his face, he popped up and looked dumb founded when he couldn't find his rifle.