Yard Feud

A fellow up the street spends an inordinate amount of time worrying about people walking on his grass. He has a corner lot and has long put up strings and fences and cones to keep people off. I've never seen anyone near his yard but he seems to think folks are out to hurt it. Now he is fighting with the mail carrier "Please keep off the grass." I wonder who added the (laminated) "why are you so mean?" Such drama.