Tell him to put the gun down in a soft tone?
From Create Your Own Story
"You don't want to do this," You say, trying to get him to let you go."I'm not trying to hurt anyone." The kid stays still for a moment, then puts the gun down. You let out o big breath you had been holding in, and stand up slowly. Before you can say anything, the boy runs off deeper into the building.
Do you:
