4: DOBERMAN PINSCHER
Normally portrayed as vicious guard dogs, Dobermans are actually excellent at that job. But in reality, they are trained to keep attackers at bay rather than to actually attack. Dobermans though, are also known to have varying personalities due to overbreeding, and because of that, some can show signs of neurosis. They require constant companionship and supervision, which is something of major consideration when choosing to get a Doberman as a pet.
