Yes. Unfriend them.
After several seasons of pleading, we had a spot in our party and invited a coworker to one of our public land deer spots. Next season we pulled in and he was at our campsite with about 4 buddies. Thankfully the country was too rough for the cohort, and they made no subsequent returns.
I had the same thing happen to me with a so called friend. After years of figuring out the habits/routes the elk used during hunting season on public land, the "Friend" shot his first elk. We swore him to secrecy. And of course the next year he was there with 3-4 buddies. The year after that the Friend's buddies were there some of their buddies. That sweet spot was destroyed. I never hunted with him again. I hate getting stabbed in the back. I like my hunting too much to waste spending time with a proven liar. These particular non-residents were from Minnesota, not Indiana.
