““When Michigan officials say, “No building without a permit,” they mean it. That’s what Stephen Tvedten found out when he received a letter from state officials demanding that he “cease and desist” the construction of two dams on his property. Trouble was, it wasn’t Tvedten building the dams—it was a family of beavers. Fortunately, the state dropped its concerns once an investigator examined the situation more closely. “It probably would have been a good idea to do the inspection before we sent the notice,” one official said. ””