My best recommendation is to have the local Sheriff or Game Wardon on your cell phone before that situation comes up. Now when it does, before
you approach them, call one of them and get them on thier way. Wait as long as you can to approach them. If you know the Sheriff is on his way and they seem to be leaving just walk up and start a conversation. This will give the Sheriff time to get there. Let the law handle the situation. Don't get caught in a gun fight your not ready to finish.