An update for boots the cat. I think that after using it for quests and such. After 1000 total pets/feeds the cat wont leave and there would be an option to allow it to stay in the castle. It would be positioned against the window next to where the cog would be. And at the end of the night the cat would add +5 to happiness.
The prompt would say something like "Seems like the cat boots wants to stay in your castle. Would you like it to stay?"
Also the cat against the window would be sitting up during the day and sleeping at dark. Maybe there should be a tiny water and food bowl next to the cat.