This wonderful video is currently making the rounds. The camera was placed on the conveyor belt at a kaiten sushi restaurant in Japan, and you can see everyone's reactions as it moves around the room they discover that they are on camera. I just love the way it does such a great job at capturing everyday life.
It has such a cinematic quality. I watched it first without sound and I think that added something to it. Perhaps some ambient music in the background would add a nice touch.
However, I don't think I would have the guts to do something like this.