A teacher narrates an encounter with a stranger knocking on the classroom door, asking to be let in frantically. The teacher turns off the lights and instructs the students to hide while feeling nervous and unsure of how to handle the situation.
A math teacher shares their experience during a lockdown in their middle school. The teacher instructs their students to hide in the corner with the lights off while they go to lock the door and recalls seeing the lights in the hallway dimmed.
A person experiences a potentially dangerous situation when someone knocks frantically at their door and begs to be let in, claiming to need help, while possibly holding a gun. The situation causes the person to feel nervous and uncertain about how to handle it.