This is interesting - from the article by Matthew Hoekstra: “And while some believe Cheech can be rehabilitated because of its age, Naherniak said clinical evidence for dog behaviour indicates the opposite. He said if a young dog shows extreme aggression, the source is likely genetic, not learned, meaning the dog could become more aggressive in the future.” During the conversation I had with Lorie Chortyk, she specifically said Cheech showed learned aggression. Once again, more twists.