In this exercise we were to animate a push or pull action. Like other exercises, it is supposed to illustrate some physical forces at work. In this case, it is the tension of two bodies pulling in opposite directions.
Since I'm slow at 'me drawrings', I have a guy playing tug-o-war with someone/something off-stage. Then, soo-prise, soo-prise, soo-prise... something happens.