I've wanted a rat for awhile now too. But I don't think I can because of the cats. They are both so young and active that I am scared they would hurt it. I'm always worried about everything that is breakable in my room, so I could only imagine trying to have a small living creature in my room. Plus I think my roommate would have a fit if I had a rat, and seeing as how I live with her I don't want to upset her too much.