I had something similar happen a few years ago when my buddy and I were duck hunting. We left our house about 4:00 AM to drive to some public land. It was quite a drive to get there. We got set up waiting for sun rise, were calling have birds wanting to land in our spread. All of a sudden some hillbillie comes walking into our spread, splash, splash, splash. He stood there wanting to talk. We finally got rid of him. He went and set up on a mound behind us. We have birds working again and he starts blasting them over our heads. Here we got up early and set up in plenty of time for a good hunt. The hillbillie probably just rolled out of bed and decided to go hunt and make someone elses life miserable. Oh well. That's why we only hunt on private land now.