Last year I remarried and my husband came with a cat. I also had a cat, who'd live in this house for 14 years (with a dog for several years, but as the only pet for about the last 6) The two didn't get along, despite efforts on our parts to ease them together. We had some rough moments in there in the spring of 2012. One of the up shoots of all that mess was that my girl started using a corner of one room for a litter box. I hadn't had the foresight to place one for her in a safe zone and she made the decision herself. We did our best to clean up that carpeting and placed a new litter pan in that area. For a time my older cat used that pan and the younger one used the old one. As time went on they both ended up using both pans. Occasionally, now, I will find the newer pan unused for a day and wonder if it's possible to remove it. I'm concerned, though, that there is still some scent left behind in the carpeting and that they will just smell that and use that area anyway, even without the pan there. The second pan is in a less than convenient place, but I'll keep going along as-is if necessary. Wondering if anyone else has ever dealt with a situation like this and what the outcome was.