I used to have a very specific role in a scientific department. I'm not going to say what it is, because there was just one of me!
It had a bit of giggle factor, like someone working on..I don't know...bovine semen or something.
I haven't done this job for nearly 6 years. I am in broadly the same scientific field, but have taken quite a large step into publishing from research.
It's far easier to explain what I do and there are some things I work on which are very interesting (Covid, endangered species, medicine etc).
Yet people STILL ask "how are things in the semen world" [giggle].
It doesn't matter - they don't need to understand what I do, but I just feel dismissed and they're not really interested.
I used to think I didn't do a good job of explaining what I did, until I heard someone explaining nearly exactly the same thing on Desert Island Disks using the exact analogies I was using and breaking it down in the same way.
I think sometimes people fear they don't or can't understand and their minds close down.
To be clear, I'm not banging on about my job all the time, it's something that comes up now and again.