How on earth do I stop it?
Have had her about 18months and it's only in the last 6 months or so she's been doing. The bottom step of the stairs is ruined, it's a rented house but I don't mind so much as dd ruined the carpet when she got hold of a sharpie marker a few years back! However I would mind if I ever managed to get a new carpet.
She has a scratching post but never used it, I can't spray water at her because she waits til I've gone to bed every night to start. Clearly knows she shouldn't be doing it!
She goes outside as often as she wants, has plenty of food and water, clean litter tray, has been neutered.
What else can I try?