I have had cats all my life and haven't had a problem with them using their litter trays or going outside. We currently have 3 cats who are all house cats due to being nervous due to previous abuse and they all have grade 5 or 6 heart murmurs. Poppi is 10 and a little bit of a madam. She has in the past had a wee beside the litter tray if say my male cat has been in before her and made a smell. Their litter trays are in the hall and the flooring is linoleum and easy to disinfect. My problem is in the past week or so she has taken to having a wee in the livingroom behind the TV and today she had a poo. Is there anything I can put down on the carpet to stop her from using that place again and to get rid of the smell?