Yes, 4 feet deep, dangerous. I call MU if I haven't planted my garden in a while to make sure some cable hasen't been layed while was not watching.
My house's previous owners buried their cats.
http://www.friendsoflittlerockyrun.com/More_Info_Virtual_TourPAGEFIFTYSIX.html --see bottom
Even If the cops caught you, would they make you dig it up?