The following story is not first-hand. It's not even second-hand or eleventh-hand but, it is purported to be true. For the purpose of this posting. we'll call our hero "Slim" Wilson.
Slim had done OK in life and invested in some rural property. He built a small dwelling for himself and turned the rest of the property over to the tender mercies of nature. This had been Slim's plan all along. His property soon became a magnet for all types of wildlife, including a breeding pair of beavers. Beavers, being beavers, do what beavers are supposed to do. They built a dam. Slim was delighted-for awhile. At least until the "Summons to Appear" was served.
It seems that the Department of Natural Resources had a "Cease and Desist" order for Slim. He must, forthwith, restore "his" Wetland property back to it's natural state. DNR further said that if he wants to build a dam, he must have an Environmental Impact study done to determine feasability of said dam.