If they are deliberately messing up your hunt call the local sheriff. It is against the law in Texas to do that and they can be fined $2,000. We had someone that used to wait until opening day of bow season and then come out and shoot his rifle for target practice to ruin our hunt and drive up and down the fence line. This year he tried it and we had the chief of police hunting with us and after the hunt he went and had a talk with him. He hasn't tried to do anything since.