I wrote a long reply earlier, was about to post and my phone promptly died. I don't want to derail the thread again, so I will just say thank you for all your thoughts and comments re the diagnosis. I'm very lucky in that I have a masters degree in autism and have worked at a specialist school for children with autism for 13 years, so I have access to some incredible people for advice.
Anyway back to cats. Walter also likes to use his tray while I'm on the loo. He also sits on the toilet lid, which my boys find hilarious.
Do any of you follow the page "Temperamental Chucklefucks and friends" on fb? Sorry about the language. I'd heartily recommend it for feline related giggles. Read back through the current Vitamix saga. It really makes me laugh.