Ah, yeah, my family can be like that with books too. I made my mother sit through several short lists of traits including explanations (with a moderate amount of pathological/technical vocabulary, most other people seem to prefer few to none of that though). Then, when there were short reports or documentaries about autistic people who talked and met some other requirements that I thought would remind her of me, I alerted her of them and she'd watch some of them. She is interest in people and medical topics and pointing out that people (when they showed up on TV, for example) such as Temple Grandin and Daniel Tammet are autistic, I'd always managed to catch her interest in a positive way by getting her curious.
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Autism + ADHD
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The trouble with having an open mind, of course, is that people will insist on coming along and trying to put things in it. Terry Pratchett