Even before Grandma's health started declining, trying to explain technologies was... interesting. Now that most of my activities revolve around digital art it's even more odd. Apparently, moving abstractions around as an accountant is less bewildering than manipulating nothings for artistic purpose. :)
But once in a while I manage to explain things in ways she understands. I showed her a flash key and said, "This is a modern filing cabinet. A whole filing cabinet's worth of paper can fit in here."
And today she asked again what it is I do, and I said, "I'm making puppets dance."
And so I'm a puppeteer and finally respectable again.