Helen, if it makes you feel better, my Bella has a real penchant for sitting on anything soft, wherever it is put down, so we frequently find her lying on towels and oven gloves on top of the work surfaces! Leave a sock lying around, she'll sit on it ... my all time favourite was when she tried to sit on a duster I was still holding!! I will have to take a photo next time she does it ... she has the exact same "what?!" expression as Riley!!