did you ever visit a lowrent friend's appartment and they leave the lights on in the kitchen. And you say 'why do you leave the lights on in the kitchen? ' and they reply 'that way , if I wake up and need to get a glass of water, I don't see 1000 cockroaches rushing for cover when I turn on the lights.'
Oh . . .
the light are off, the cockroaches are out and doing their boast-scolding 'I can be hitler now' bit.