I have had people presume too much a lot and my attitude is "their loss". You get to a point where you just don't give a damn.

I guess that's because I've had 26 years of that crap. Tell people that you have Aspergers Syndrome and all of a sudden you're a drooling retard that's good for nothing in their eyes, which is the complete opposite of what Aspergers Syndrome is.

Go and help at another con and make it more successful that that one.