Who should discipline the students if trouble arises?
Discipline should always be handled by either the host home or the co-host. This often discourages a wall to be put up between the disciplined student and the small group leader if the small group leader has to discipline the student. This encourages more involvement in the Bible study sessions. This also protects the small group leader from disciplining in ways that your church might not support because he or she is not aware of church policy, etc.