You are college student Brent Marlowe. You are watching the news at night when you first heard of kids with shrink ray-guns terrorizing the world. From all areas of the globe, reports are coming in of adults being shrunk and held captive by gangs of kids running the streets with shrink-rays.

A reporter on the six o'clock news is discussing the situation. "We have with us," the reporter says, "Professor Morton Stanley, physics professor at Cal Tech. Professor, can you please tell us how these strange devices work?"

"Yes!" the professor replies, "They target the quark and gluon particles that make up the protons and neutrons of atoms and strip them of neutrino particles. The guns have sensors that show whether the target is a child or an adult. If a child is detected, the gun will not shrink them. If an adult is found in the targetting scope, it will shrink them."

You hear a knock on the door. Should you hide, or go see who it is?