My husband and I took in a feral kitten (4months old) about 6 weeks ago. She has used her box since the day we brought her home. She is also coming around to being a friendly cat; she lets us pet her while eating, loves playing with her feather teaser toy, and she climbs on my head when I'm napping. It is going great, except occasionally, she poops in the wrong place. Once it was on the carpet in the living room and just now in the kitchen sink. We keep her box clean and with fresh litter every other day. What can we do? We have feliway going in our apartment.