If a fight does occur, keep your hands away. Do not attempt to handle either cat. Bang a pot with a spoon or throw a large book to the floor. These loud noises won't be associated with you, but will distract the cats and send the message that hostility generates an unpleasant noise. A second choice is to shout or clap your hands, but you don t want to make either cat afraid of you.
Cat fights usually sound worse than they are.
Cats yowl, but if their nails have been trimmed, damage should be minimal. Some declawed cats may bite. When things have cooled down considerably, go over each of the cats' bodies carefully and check for wounds. Unless there is obvious damage needing immediate attention, be sure to wait to examine until the cat is completely calm pupils not dilated, tail not twitching, ears in a relaxed position. An upset cat may reflexively bite anyone or anything that comes near.