http://dogtime.com/dog-breeds/tibetan-mastiff This is a gorgeous dog but I would not want to be its pooper scooper for sure. One sold recently for 1.9 million in New York. He probably can afford to hire someone to clean after it.
This is a gorgeous Tibetan Mastiff. A very rare breed once used by the Monks as guard dogs. They are gentle giants with their families but beware if you plan evil, they are guard dogs weighing around 150 lbs. or more. A lady in Chinea paid around $7,000,000,000 for one.