Try once more to break up the fight.

From Create Your Own Story

Intent on ending the bedlam, you try again despite your wound.

"I have... um... tuna! Yeah, I'm sure I have some canned tuna. Stop fighting and I'll give you each a can!"

The cats seem uninterested in your offer, and continue to hiss at each other. Meanwhile, you feel a burning sensation coming from your hand...

Inspect your hand. Look for a weapon with which to threaten the cats. Sit and wait to see if the cats stop on their own.