many years ago in Scotland, I used to live and work with a young, autistic man. It was my first (that I knew of) experience of living and working with someone with autism. We used to work together in the garden and, mainly, in the bakery where we combined to make the "human bun machine" which was more or less a race to make the most buns. I will never forget the day I finally won. He claims to have forgotten, but as he never forgets anything, I assume he just decided to not bother remembering something so insignificant. He always called peanut butter P.B. so this combination on the table in front of me tonight amused me. 
Today I have been baking with two people with autism. I'm not sure that I ever really agreed to becoming an autism "expert" (or whatever I am), it all kind of happened. But the Scottish experience, with the baker and one other work colleague (who I cooked with) definitely gave me a taste for the fun and frustration involved in it. And today was also filled with fun and frustration, in nearly equal measure.