Keeping your room door locked can prevent unauthorized entry of your living space. Never prop doors open. Exterior doors and doors to individual floors are locked for your protection. Propping them open compromises your safety and the safety of everyone in the building. Do not let strangers into the building or on to the floors.
Criminals can look like anyone.
You can t tell a persons intentions by their looks. Do not keep valuables, particularly jewelry, at your campus residence. If you have family heirlooms leave them at home. Record the make, model, and serial number of all valuables and keep the record in a safe place. Mark your property.