Rottweilers can be calm and loyal, but their strength means they need lots of training! Positive response training with rewards is best- they will happily exchange obedience and good behaviour in return for delicious treats. When Rottweilers have been well socialised they will live in peaceful harmony with cats and other household pets. Their glossy coat needs minimal grooming- just occasional brushing with a firm bristle brush is fine. Celebrity owner: Will Smith.