Most of the Cairns we receive are older and already have an established history with or without a reaction to cats. Rescue Cairns who have not previously lived successfully with a cat generally do not get along with a cat, particularly because of their breeding as hunting dogs. Another thing to keep in mind is that just because a Cairn previously lived with a cat, it doesn't necessarily mean it will get along with other cats, since the Cairn may react positively only with its previous cat companion.