I've had Sammy for 9 years and he's always been touchy about his litter box. I recently got a kitten who is 9 months old who is obsessed with him and wants to do whatever he does. It's cute, except for when she's shoving her face in his food bowl and I think she has bothered him while he's trying to use the litter box. For a few months, we've had NO IDEA where he was going (I never saw him use the box, but we never saw his messes on the floor, I guess he pooped into a wormhole), but over the past few weeks we have been seeing his stuff on the floor, and I still haven't seen him use the box. I assume Olga has driven him away from it, but I don't know how to control her, especially if I can't always be there. Secondly, I don't know how to get him to start using it again, he's probably been au naturale for awhile now. We have two litter boxes and limited areas available to put themâ€”tonight I switched the places of the boxes, and I'm hoping it will work. Any suggestions otherwise?