Night lights are small devices that emit low-level light to reduce fear of darkness, typically used in children's rooms or hallways. They're designed for safety and comfort, allowing people to navigate without fully waking or turning on main lights. The darkness is positioned as the threat; light is the solution. It's an assumption that light is preferable to darkness, and that brightness equals safety.

Then this fact invert that assumption. Chuck Norris uses a night light not for his own comfort, but because the darkness is afraid of him. The light is for the darkness's benefit, not his. In the battle between light and dark, Chuck Norris has sided with light—not for illumination, but to protect darkness from himself. The night light becomes a palliative measure for an environmental threat he poses.

What makes this work is the total inversion of the purpose. Night lights are usually positioned as weapons against darkness. This fact suggests they're protective measures for darkness against him. He's so threatening that darkness requires illumination to escape his attention. The fact transforms a children's comfort item into a defense mechanism for an abstract force. Darkness needs light to hide from him.