I am a first time cat owner and I confess I have no idea what I am doing! Our cat adopted us six years ago after her old owners left her behind when they moved. She was an out door cat when we moved in but the Beast From The East prompted us to move her into the house and she has been a half and half cat ever since. Out during the night in the summer, in during the day and the reverse in winter. She has never used a litter tray, always preferring to go outside and has been very clean. Until last month. We have no idea how old she is and we suspected she had dementia. Turned out to be a kidney infection and after a course of antibiotics, she seemed her old self. Except now she uses the sofa in my home office as a toilet! I have had to throw it out today after I discovered she had peed so much on the cushions, it has soaked right through onto the sofa base below, The sofa has now been thrown out and I NEED to find a solution to this! I cannot rehome her, put her down, or force her to live outside again as she is a very loving creature but we have to find a way that we can all live together again! Does anyone have any ideas? She sleeps in my home office and I have nothin left in there but a ru and my desk and chair. I am thinking of rolling the rug up at night - will she tempted to soil in the house if all she has is a hard floor?