We have a multi pet household...two adult sibling cats and our lab Guinness (3yrs). Guinness and our older cats get along famously as our cats were raised by a dog to begin with. Our daughter has just brought home a new 8 week old kitten. The kitten has been in her room for a couple of days and we brought him out in a cat carrier for a safe introduction to everyone. He hissed and spit a little at our female cat, a little more with our male shy cat and A LOT at the dog. Guinness (the dog) was quite curious but startled by the hissing and did a bit of growling. Anyone have any advice on this and how they handled it to make the transition smoother?