In professional wrestling, a heel is a bad guy - who sometimes becomes a good guy. And then becomes a bad guy - a heel - again. Depending on what’s popular. The personas are fungible.Hulk Hogan began his career as a heel and then became a good guy.Dwayne “The Rock” Johnson has undergone a similar evolution. Several times. He began his career in the ‘90s as a good guy - a face, in the vernacular of professional wrestling - under the name of Rocky Maivia, but turned heel because the audience turned against him.And he made the most of it.He...