 Later, the breed was used for dog fighting; these enhanced traits made the Shar-Pei difficult for its opponent to grab and hold on to, and so that if it did manage to hold on, the Shar-Pei would still have room to maneuver and bite back; when grabbed by any loose wrinkle, a Shar-Pei can actually twist in their skin and face in their opponent's direction.In fighting, they would twist in their skin to bite the assailant back.During the Communist Revolution, when the Shar-Pei population dwindled dramatically, dogs were rescued by a Hong Kong businessman named Matgo Law, who in 1973 appealed to Americans through a dog magazine to save the breed.