[CallMeV]

Personal experience - The author, Stephen Baxter, at a signing at the old Andromeda SF bookshop in Birmingham, UK, looked pretty sad because, despite being surrounded by fans, nobody actually wanted to approach him.

The legendary Kenny "R2D2" Baker at a convention I attended looked dreadfully alone; nobody even wanted to go up and ask for his autograph.

At the same convention there was a massive guy dressed like a Klingon warrior. He actually looked a little uncertain until I came up and regaled him with a couple of Klingon words. Then we got into some curse warfare and he was in his element. Yes, I speak Klingon as well.

I can cite many such examples, usually of some TV or movie celeb attending a convention and looking so bored, sitting there on his own. Dirk Benedict. Erik Menyuk. Michael Dorn. Many others.