I was speaking with two people who have family members with Aspergers Syndrome recently, and was struck by something both said: one of the annoying things about both was that neither would ever turn off lights or close doors or carefully screw tops back onto jars.
I don't know why that would be, but it seemed more than coincidence.
A couple of other things I've noted:
If they don't get the answer they want, they just keep on asking you, as if you're going to change your mind the next time they ask.
It recently struck me that one really telling thing is that Aspies simply never, ever rave about other people. You'll never hear an Aspie say, "That guy is sooo cool!"
Or, "Man, is he ever tough!"
Or, "That guy is an absolute riot! He had me in stitches!"
Neurotypicals -- how people without Aspergers are referred to in Aspie-land -- may be wrong when they rave. They may be naive, or misguided, or even completely out to lunch. But they do rave, at least on occasion. Aspies simply never do.
There seems to be a weird sense of jealousy at work there: the Aspies seem to feel that if they rave about someone else's ability, it's as if they're confirming that they don't have those same abilities. And since they have a hard time ever admitting anything is wrong with them, they don't want to give others credit.
It may also be partly because others are a mystery to them. Imagine you've suddenly been placed into a colony of space aliens: would you be inclined to rave about how one of them is just so incredibly intelligent, or funny, or tough?
No, the thought would never occur to you. Just as it doesn't to Aspies who've been situated among the neurotypicals.