Sadly, I don't own a gun. Mom would rather rely on our too-friendly-to-fight dogs to protect our house. However, I had a chat with these "fishermen", and have determined that if they are, indeed, robbers, they're very green - they paid little attention to me, focused on their fishing. Got a good look at their truck and memorized (and subsequently put down on a document on my computer and wrote down on paper) their license plate number. They seemed to have no interest in what I was doing, and indeed seemed not to notice. If anything goes missing, or I come home to dead bodies, I know what to tell police. If they ever respond.