GREENVILLE, Maine—Thumper, a black Labrador retriever, is getting credit for saving a Greenville man when a fire swept through his home. Roland Cote said his wife and their 7-year-old grandson were away when the blaze started early Sunday in a converted two-story garage. He said Thumper grabbed him by the arm to wake him, leaving just enough time for him to dial 911 before fleeing the fast-moving fire. While the dog is the hero, a cat is the bad guy in this story. Cote said the fire marshal investigator believes the blaze was started when Princess, the family cat, tipped...