Pete is the lead teacher of a five- teacher school teaching team. Recently he has noticed that Sarah, a teacher from across the hall has been dropping in in Linda, the reading teacher in Pete's team, almost every fifth period to borrow something and chat a few minutes. It's only for a short time, but class noise and attention appear to be worsening. Others on the team seem to have some resentment of the minor intrusion. If you were Pete what would you have done?