Scout has free roam of the apartment. I keep the toliet lids down(no drowned kitty for me) and try very hard to keep him out of the recliner(I love how tiny he is, but it will be a relief when he's too big to crawl underneath.)

I guess you could say he's not allowed in the ferret room. If I ever introduce them , it would be one at a time and under strict supervision. Scout could easily jump over the barrier that I have up so the ferts can't get out...but so far he chooses not to venture in.