Usually all dogs is a good companion for humans. If trained improper, not taken much care every dog is dangerous. It depends upon the training and the dog owners.
Rottweiler and Doberman breed
Rottweiler dog is generally excellent in obedience and good in being with family. It is dangerous for strangers when they go near. It keeps his home guard always. It is very strong and powerful breed. It has lots of confidence and fearless dog. It is naturally a good and come breed, it becomes aggressive under poor training.
Doberman is a breed which is very intelligent, obedient and easy to train. It is also a strong and guard dogs which is devoted to their owners and fearless. It also comes under most vigorous dog when it is under poor ownership or if it sees strangers coming near to it.
These dogs needs more exercise, playing and will be active always. It requires lot of caring and time should be spent to them. These dogs are mostly suited for guarding the home and for rescue purpose. Many Insurance companies did not have insurance coverage for these 2 breeds and also some other breeds which treated as a most common dangerous breeds. Choose the dog which will be most suited for you and your life style and be caring.
Why Rottweiler and Doberman breed tails are docked?
Tails are docked not only for these breeds, it is done on many dog breeds which are considered as a working dogs.
For long period, it was followed for the dogs which are considered as the working dogs, where they can find tails are disturbance for the work and may be easily get damaged and injured, so their tails are docked.
Cropping of ears is purely a cosmetic one. They wanted to style the dog and wanted the strangers to get scare of it.
But nowadays many countries do not encourage these and made as an illegal one. Generally it is accepted as painful and unnecessary things.
When puppy’s tail are docked and ears are cropped, it will cause unnecessary pain, and reduce their immune system development, become stressful and also creates anxiety. Moreover the dogs use tails and also ears for their communication.
See also Training the Dog – a bond.