Which just goes to show you how much of a boy genius he really is. It must be superbly well hidden. Cunning, that one.
All you’d have to do is follow the little sister around and when she starts saying “What does this button do?” come barging into the room, and you’ve discovered the lab.
I have a vague feeling that this has happened before, but I can never seem to fully recollect any of it. And when I mention it to him he just looks directly in the camera and shares a giggle with the audience…