When I was five or so, my next-door neighbors got an Arthur point-and-click game for their PC. I remember being amazed that when you clicked on something on the screen, SOMETHING WOULD MOVE IN THE GAME. Click on a water fountain? It would squirt a stream of water at Mr. Ratburn. Home computers were still a new luxury item, and I would go over almost every day to play on it. I'm pretty sure I was asked to not come over as often, not because I was doing anything wrong, but because I was there all. the. time, and they needed to sometimes not have a computer-obsessed five year old up in their space.