NEVER get involved in a cat fight...just get some wine and enjoy the show
I've babysat my neighbors cats several times. One of their cats came from an abusive background due to her previous owners. She has gotten to know me very well. One day when I was petting her head in a very gentle fashion, she clawed my hand and arms pretty good. Thankfully no stitches were required.
Keep an eye on that.
You know what cats scratch at a couple times a day.