For now, I'll describe the creator as a 'well-known comic book writer / artist'.
First London convention, he was all alone at his table in artists' alley, so I went up to ask him to sign one of my books.
Chatted away for about a minute, then he says he has to go to a signing booth at the opposite side of the exhibition hall. I say I'd rather come back and see him the following day, explaining that I'm very bad with crowds because of Asperger's Syndrome, very stressed, very burned out towards the end of the show, and so it would be better if I leave it for tomorrow.
He then waffles on about one of his relatives having neurofibromatosis, which is absolutely nothing to do with autism, how he takes things like this very seriously, and insists I walk with him the whole length of the hall. We reach the signing area and then, pointing his finger, he aggressively demands...
'Get to the back of the queue!'
I just turn and walk away, appalled.
No 'clever' counterarguments here, please. If I explain that I have a disability which makes it extremely difficult to handle close proximity with large crowds, then I don't expect to be herded into position like this and ordered to do something which I have clearly stated I don't even want in the first place. Not only is this manipulative and abusive, it's also completely illegal under disability discrimination law, America and Europe.
Always devastating when you discover that someone whose work you've followed for decades is such a pitiful excuse for a human being.