15 Dog Breeds That Cannot Be Kept as Pets

14. Bully Kutta

    The Bully Kutta, also known as the "Pakistani Mastiff," is a massive, muscular dog bred for hunting and protection. It is extremely powerful and very territorial. Due to their strong protective instincts and dominant nature, Bully Kuttas require very experienced owners and intensive socialization from an early age.

  Why they are banned: Their dominant behavior, incredible strength, and potential for aggression make them a risk to untrained owners. Where they are banned: Bully Kuttas are banned or restricted in parts of the United Kingdom and Denmark.