Finding a ferret that potties in the box 100% of the time will be hard to find. When someone finds one, please let me know! As for cleaning up, don't use Febreeze! I have an article from a ferret show that I went to that says how it could be harmful. I think that Nature's Miracle is a joke. We used it, and the ferrets (we have 8) were unbothered by the smell. They kept going in the same spot. We use white, distilled vinegar ( we added a little more water) and there isn't much of a problem. The problem is with ferrets, is iti sn't only the smell, but that they remember where they go! Ours will back up at the same spot, but just in front of the vinegar we sprayed. They are so smart! Vineagr is a natural cleanser, so it works great for us. Thankfully, ours have about a 95% hit ratio in the boxes when out playing. When we would see one use a box, we always had a treat ready. I think that is how they learned. Of course, they fake it sometimes, but we aren't fooled. You can "hear" ours go, if you know what I mean! We have a command that they know "go potty" and they find the litterbox and go. It just takes a lot of patience and training. [Posted in FML issue 4026]