In Wisconsin you have to know where you are at all times. Land owners don't have to post there land and makes it really easy to bust tresspasser's. My property is posted and every year I bust people on it. I just have to call in there tag #'s and the ticket is issued. I have no tolerance for people on my property even though your guy sounds like a head case but it is his property he pay's for it and pay's the taxes. Which pays for the law enforcement.