 FACT: At home in London, the Pevensies are unrealistically lax with  their observation of the blackout rules. They have no blast tape on  their windows, no blackout curtains, they open their curtains with  the lights on, they leave lights on while they open the back door,  etc. Even though many of these things happen during the terror of an  air raid, it was precisely this terror that made Londoners obey the  rules so strictly.