Dobermann, in this context, refers to a breed of dog called the Doberman Pinscher. The breed is known for its intelligence and alertness, while it makes an excellent companion dog. They were commonly used as guard or police dogs, and were specifically bred for this purpose. Their resulting temperaments created an unfortunate stereotype that the dog is aggressive and ferocious, although they are really sociable and loyal animals. They often have their tails docked and ears cropped, which adds to their vicious appearance.