Gunnar was seized from his home in a hoarding situation, put into a shelter, pulled by a rescue, then adopted by his new family. Every time they touched him, he urinated in fear. Two years later after his training and rehabilitation, his owner has completely changed the curriculum of her dog training school because of Gunnar. To return the favour for saving him, he works hard by helping to rehabilitate other dogs that are fear aggressive. Many dogs form a special bond and connection with him. He also performs a cameo in the Ultamutts dog trick show by pushing a Bichon Frise in a fire truck!