What is "common" is not liking dealing with the unpredictable. If he's not the organizer he's not in control, and has to be quicker on his feet intellectually. We tend not to function well in those situations.
His tendency seems very Aspie to me. I think it's almost to be expected.
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I'm not likely to be around much longer. As before when I first signed up here years ago, I'm finding that after a long hiatus, and after only a few days back on here, I'm spending way too much time here again already. So I'm requesting my account be locked, banned or whatever. It's just time. Until then, well, I dunno...