My cousin Derek played the demo a lot in v19, and he introduced me to it in the first place. I had so much fun.
Once, at a big family birthday party at my great aunt's house, I had used 64x cubes to hit the demo brick limit in the slopes, a huge whopping pillar (before I learned about admin orb). I jumped off. Then suddenly I got pulled out of the room to sing happy birthday to some cousins. Right after the song ends, there's a moment of silence, and then suddenly the blockland death scream plays at REALLY loud volume from the other room and everyone cracks up.
Good times.