We have a 3 cats and a kitten. The kitten is 3.5 months old. We have had him since birth as one of our cats had a litter. He pees and poos in all 3 litter boxes all the time, but if he gets in our bedroom for even a minute he poops under the bed, pees on the floor or pees on our duvet. We keep our door closed constantly, but we have 4 children so occasionally it gets left open. In the past two weeks he has started to poop under the bed in our daughters room. My husband is extremely frustrated and ready to give him away. I need some advice on how to deal with this. Thanks in advance!