I'm also posting in defence of Chris Packham. He's spoken openly and very eloquently about his ASD, including how dreadful he felt at being unable to attend his stepdaughter's graduation as he finds crowds incredibly difficult. So a crowded restaurant, or a bar which is full enough to have to queue for food, I can only imagine are the very idea of hell to him.
A good friend of mine also knows him and has worked closely with him on many occasions. According to her he's unfailingly kind, polite and patient, as well as warm, witty and very good company.
On the subject of naturalists, I had the most embarrassing encounter on Brownsea Island with Bill Oddie. I didn't approach him, or pester him for autographs: the very idea of having a well-known face is appalling to me and they must get sick to death of having random strangers think they can lay claim to their time and attentions by right.
To put it shortly, I had no idea he was right behind me and he ended up privy to a conversation between me and my DH that I'd have NO wish for anyone to overhear.
We were walking back to the ferry, DS in his sling, when Oddie's landrover passed right by us. As we stood aside to let them pass he caught my eye and gave me a broad, naughty wink.
I wanted the floor to swallow me up!