I have a new ceiling fan! and the guy who installed it for me has a teenage son who sometimes tags along when school is out. He asked if it was OK for his son to come along, and I said he was welcome. Dad has helped me before, previously told me Son has some special needs (ADHD) and can be a bit talkative, so he asked if I was sure it was OK; I said fine no bother.
We got along like a house on fire, the young man isn't just ADHD, he's ASD, we just sat at the kitchen island and chatted away about all kinds of stuff without worrying about eye contact, while Dad did his thing in total astonishment. Kid got happier and happier. Apparently this doesn't happen very often for him, which is a shame. My house is very quiet, because I have ASD myself, and I use dabs of mint oil on paper towels to keep my inside wastebaskets fresh, which isn't overwhelming but is pleasant. The young man felt really at ease and not at all overloaded.
No, I didn't disclose, I don't know them well enough, but I did tell them both that Son is welcome to tag along with Dad any time they need to. I'm about the same age as his grandmothers, and that was the type of interaction we had. Very nice surprise in what's otherwise been a kind of sucky week, and I was glad to make a fellow Aspie feel welcome and heard. Even if he doesn't know I'm in the tribe .
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"I believe you find life such a problem because you think there are the good people and the bad people," said the man. "You're wrong, of course. There are, always and only, the bad people, but some of them are on opposite sides."
-- Terry Pratchett, Guards! Guards!