The composition of your family (including the 4-legged family) can lead to constant fights and the ensuing veterinary bills, or peace, happiness and harmony, and a resultant blissful existence. Which would you prefer? Some forethought when selecting pets helps. The message regarding choosing the optimal size, breed and coat type seems to have been heard and understood. However, choosing complimentary genders for your pets has not yet fully sunk in. Most sibling rivalry occurs with same sex pairings, where “sibling rivalry” refers to pets living in the same household, who fight. Male & female pairings are the “safest”, where fighting and injury is minimised. The reason might be simply that they do not compete within the same hierarchy, so one pet can defer without loss of face socially. Two pets are more fun than one, but only when they get on!