I currently have a very mad cat as I locked the flap due to local fireworks, she’s furious but I’m terrified that she goes out and one goes off and she’ll bolt so it’s tough. She has a litter tray, a bowl full of food and free access to the whole house. She’s currently ignoring me (by which I mean sitting in front of me with her back turned and ever so often flicking her till in an “up yours!” Gesture
You have to love them