Just adopted 2 piggies 2 days ago. I also have a 3 years old cat so I built a cat proof closed cage with zip ties and it's in my den room. The door is shut when we aren't there, I don't want to let my cat in the room unless if one of us in there. They aren't scared of the cat though. It's only a 2x 3 cage- I'm going to rearrange my furnitures so I can expand it but for now it works.