I'm trying to head off what I see as a potential problem. I have two cats - a resident (Molly) and a recently adopted stray (Little One). Three litter boxes. For three months Little One was happy to go in the box that's in my bathroom. She'd walk past Molly's box and not show any interest. I was away for a week - my assistant came in every day to feed and scoop - and when I got back, I found that Little One has now been going in Molly's box. Now Molly is very particular about cleanliness. She won't go if her own poop is in there. I'm worried she might start acting out if she realizes she's sharing a box. So far, I've been able to stay ahead of it by scooping it out before she goes in after Little One's paid a visit. I'm wondering if there's any way to redirect her back to the one she was using. Any suggestions or guidance is appreciated. Thanks!