Wear a white shirt, black tie, black pants, and a backpack. If someone gets too close to your hole, simply walk up to them, pull a book out of your backpack and ask “Are you familiar with the book of Mormon?”
I had the same issue this year drilled some holes off a rock pile and here comes a truck. 2 guys get out say they caught fish right here last year at this time of day as they were looking at their gps…I was so mad I packed up and left. I managed to salvage the day on another spot but I felt it wasn’t worth it yelling. If they are that stupid and have that little common sense me chewing them out isn’t going to help them out much and only going to make me more upset. So in the auger and marcum went and off to a new spot all to my self that was holding nice gills. It was like a reward for playin it cool at the last spot.