She's 3, went through a phase when she was little & it stopped as soon as she was spayed. At least twice this week she's peed on the carpet at the bottom of the stairs. I'm not sure if it's because there was a mirror stood up in the corner...she had been pouncing at her reflection, or because there was also a box in the same corner that had been in a dog owners house.
I've moved the mirror & the box and put a litter tray in the corner. The carpet stinks, I've tried washing it, I've used vinegar. The most annoying thing is the carpet has only been down 8 weeks.