It's wrong not doing your fair share in a group.
Lara is scheduled to work on a group project on Saturday with two of her classmates.
Lara wants to go out and party on Friday night.
Lara goes to a party on Friday but leaves early so that she won't be tired at the group meeting on Saturday.
Lara goes out and parties on Friday where she drinks heavily, causing her to be hungover and not contribute much at the group meeting.
Lara's group members are happy with her and the team gets a good grade.
Lara's group members are frustrated with her and the team gets a low grade.