YMBAAI ...some guy at work approaches you with his phone out and says "hey, look at this picture, I found this in the staircase...". You see the picture, of something that looks like a moth, and says "Is that a moth? Interesting color. Where did you see this again? I saw you approach from the general direction of the staircase."
"I saw it about 2/3 down the staircase"
"So, since we're in the middle floor, you saw it on the landing on the halfway point downwards from this floor and the ground floor?" (which isn't really a ground floor, since it's set in a slope, making both the alleged ground floor and the alleged first floor display characteristics of both a first floor and the ground floor.)
"Yes"
"Cool" Starts walking towards the stairs. "Was it down here?"
"Yes"
While you have located the bright green moth beautifully displayed against the white plaster you feel a presence behind you.
"I'll see if I can't get another picture of it."
"The light here is kinda yellow and not really able to make sure you get a good, true representative picture. I have a flashlight upstairs. I could get it, if you want?"
"Nah, my phone has a light too, I'll use that"
"OK." You want to know what kid of moth it was, so you go upstairs and start googling. While you're googling but haven't really come to a conclusion yet, he has obviously finished taking the picture, because he is emerging from the stairs and starts heading towards his office.
"I wonder what kind of moth that is." you say.
"I'll see if I can't find it in this book about moths I got about a year ago" he says as he disappears out of sight.
Your googling makes it very likely it was a "badwing", so named because the rear set of wings are markedly shorter than the front set, making it notoriously difficult pinning it down nice and flat in a display case. You see the guy (which you have known for a year, incidentally) walk past you a couple of times later in the day, and consider telling him, but doesn't really know how to.
The next day as you come to work for the day shift, your co-worker points out this HUGE brown moth which had been sitting on the wall in front of him all night. This prompts you into telling about this other guy and the green moth. In great detail. Co-worker leaves. You see the other guy a time or two. You don't tell him about what you found out about the moth. He doesn't say if he looked the moth up or not. You don't care.
11 hours or so after you left work you think the guy might actually have been trying to flirt with you. It might also have worked.
If this has happened to you, you might be an Aspie...