Thanks Allan C.-Maybe if I get him in a trap I could take him to a dentist. I went on a search & found an excellent site that advises to take the trapped animal atleast 5 miles from my house. So these fellows must be darn smart. This site also has recordings of ground hogs & their different "Voices"

Allan C, you seem knowledgeable-is their any chance from what you've read here-that this might be a rat?
The first time I heard it's rhythmic Gnawing - I stomped & made noise. He kept it up-I then made the loudest Meow I could manage. He stopped dead, but returned the next night & it didn't work anymore.