One registered Doberman, one part Doberman/part Lab, one Germany-sourced 110 pound couch Doberman. All fiercely protective, but gentle as a lamb with their owners. I choose Doberman Pinschers exclusively. Unfortunately, their typical life span is only 9 to 10 years. They have a range of genetic issues, and can be expensive to keep healthy. No matter, their loyalty knows no end. Pure-bred Dobermans are normally very intelligent, but the mixes have issues. I don’t know about Labradors, but the Lab mix is dumb as a rock. She is a happy dog that loves attention and food, but she isn’t much for protection. Her pleasant personality wins the day. Gotta love them while you are blessed with them. They’ll never stab you in the back🐶