You may have permission to hunt the farmer's property but you don't have permission to use the other hunters personal property. There have been plenty of times i have walked up to find people sitting in my tree stands on public property and private to. The tree may be public property but as far as im concerned the hunk of metal chained to it, ISN'T. Finding people in my tree stands makes my blood boil. There was an instance were i became so mad i yelled at one guy i found in my stand- " What would you think if somebody just came and took your car for a spin while you were sleeping?? You weren't using it at the time." He replies with "Sorry man, i didn't know it was yours." Well guess what jackass you certainly know its not yours...You deffinetly did the right thing by moving on.