Roomba Drinking Game

So, I just got a Roomba and I've gotta say, it's pretty captivating to watch the little rolling saucer navigate about the room. I've decided that I must devise a drinking game for it. I'm thinking something along the lines of colored confetti or something that the participants would place around the room. Next the roomba would be started and if one of your pieces was sucked up, you drink. Last person with a chip on the floor wins. It's still a work in progress and extensive testing will need to be performed to validate the theory.