i have recently bought a new cocker spaniel puppy, i also have another cocker spaniel, a cavalier king charles and a cat. The cavalier is very quite and friendly but the cocker is a bit more reserved when it comes to other animals and becomes quite scared when meeting other dogs so sometimes growls and barks. i have not introduced the cat to other animals as an adult so am unsure about how he will react. would it be best to introduce them all individually? what would be the best method to use to avoid any upset?