Racing on Chairs
A group of five actors in a line, one behind the other, each standing on a chair. There is a sixth, unoccupied chair at the front of the line. Each actor moves along one chair, so that the empty chair becomes the last one; then the last actor passes that chair to the next actor, until this last chair is at the front of the line. Then the actors step one chair forward . . . and so on, so that the line of chairs is always advancing.