Hi Tim,
I have had students to become very angry when their team members were not pulling their share of the weight. I talked to the team, and I explained how important it is to work in a group and do your part. In the real world there may be times where working in a group is necessary, and if you do not pull your load, you can possibly be terminated. No one wants to be labled as a slacker, therefore, it is crucial to display great work ethic.
Patricia