Hi, I currently own a 19 year old cat. Within the year, I am going to foster some cats from my local rescue. I have a large catio for the cats. My current cat is a rescue and we have been super lucky. She doesn't scratch the furniture, she does her business outside etc. Therefore I have no experience with more 'problem' cats, which it is likely the foster kittens will be. Any tips on cat-proofing, or correcting behaviours? Thank you.