To explain what this is about: my dad is most likely an undiagnosed Aspie (he's on the shallower end of the spectrum and far better at socialising than I am, but still he throws a tantrum if someone gives him the wrong teacup or spoon, so yeah, go figure...)
One day when I was very small dad snatched the star-shaped glow-in-the-dark stickers some well-meaning person (I can't remember who it was, most likely one of my mom's very boring and very interchangeable colleagues I never really noticed as a child) had given me and arranged them in the shape of actual star signs. (He was very obsessive about it, too, and didn't sleep until it was finished.) The one wall of my room is now a very, extremely accurate (meaning: actually usable for scientific purpose) star chart. That glows in the dark. With cheap stickers meant for small children.
While I do realise our apartment has not quite the average interior design (dad also plastered our living-room with photos of fossils, and let's say I'm not the only person here who collects rocks), usually visitors assume it's due to some artistic statement. (Of course, most people don't know what a star chart looks like anyway and just think someone spent a lot of money on weird glow-in-the-dark stickers and randomly pasted them on a wall.)
Only some days ago I had visitors, and one of them has an interest in astronomy. He was like, "wtf, this is accurate?!?!? who would do that sort of thing?", and when I explained my dad made that chart for me, he asked whether dad is autistic or anything. The funny thing is: When I mentioned that we both are on the spectrum (and I'm the more severe case), he didn't believe it at first, because I apparently come across as too normal. Very unusual. Usually it's the other way around and my parents are asked what the heck is wrong with their daughter.
(But... is this actually so unusual? I'm confused. I thought it was perfectly obvious to arrange star-shaped stickers to star signs. Does this really already count as autistic behavior?)