I think I just met a kid who grows up to be a mad scientist.
Kid (maybe 5): Look, I drawed a picture!
(the picture has a lot of random shapes and a bunch of numbers)
Me: Cool! Can you tell me about it?
Kid: Well, this (points to random lines) is a dinosaur.
Me: What are the numbers for?
Kid: It's for remembering how to make a dinosaur.
ETA: OK now I'm sure of it. He just came back with another picture and read it to me: "I love volcanoes".