Twisting your features into a mask of pain, you dig your heels into the soft grass. A rope tears into your palms. A clear, tiny voice speaks to you amid the many confused thoughts swirling in your head: "So-o-o-o… What am I learning from this experience?"

Well, if you're like many who have done this exercise at a corporate retreat, you should be learning about teamwork. As others join you, the collective rope-pulling effort seems to demonstrate the point. Little by little, the boulder starts moving until it nudges over the 30-foot mark. Cheers erupt, but you notice something. With each additional person who contributes to the effort, the boulder moves faster, but not as fast as you would have imagined. By the time the tenth person steps up, you feel the group is barely pulling harder than when it was only six, even though everyone seems to be working hard.

This well-documented phenomenon — social loafing — is an issue that plagues any group of individuals working together, but it isn't the only one. Knowing what to look out for can be half the battle. Below are the top five biggest teamwork ills, and some prescriptions to help you avoid them.