A Friend is bringing her ladycat to visit this week to see if she and my boycat try to kill eachother or not... if they don't then I'll be pinching her but if they do then obviously she'll go back to friends house. can I have some suggestions to minimise damage please? They'll both be house cats, she's already in most of the time and uses a litter box at home, Not sure if it's relevant but she hasn't been spayed but boycat has. She's about 6/7 months older than my cat. Really hoping it works out because she's beautiful and is a lovely little girl💗