Sam Foster, school psychologist, developed good rapport with Frank Green, a 10th grader, when he counseled Frank about some problems in adjusting to a new stepfather. Later in the year, Frank makes an appointment to see Sam and reports that things seem to be going better at home. He confides that he stopped by to talk to Sam because he is worried about a girl in his woodshop class named Heidi. Heidi is a friendly 16-year-old who is mentally retarded. Recently, three boys in the woodshop class began to show a special interest in her. Frank saw the boys take Heidi into a storeroom near the woodshop on two occasions after class, and he thinks the boys are doing something bad to Heidi. How should Sam handle this situation?