What should you NOT do in an active shooter situation?

In an active shooter situation, lying on the ground is not an advisable course of action because it can leave an individual vulnerable and exposed to the shooter. This position does not provide adequate protection, and being on the ground limits mobility and options for escape. While seeking cover, running away from the threat, or calling for help may be appropriate responses, lying down typically does not enhance personal safety or improve the chances of surviving the incident.

The other actions mentioned are proactive measures designed to enhance safety, either by moving to a concealed position, escaping the area of danger, or seeking assistance. Each of these strategies aims to protect oneself from immediate harm and to potentially assist others in the situation, making lying on the ground a less favorable choice in an emergency scenario.