Also, in regard to the light giving away your position debate I will say this. Unless your house is completely pitch black, (blackout curtains, no streetlights, no ambient light at all) your position is already given away. Silhouettes are fairly visible in most "dark" houses.
My position will be given away, because I'll be crouched next to a really, really loud 120 lb Rottie.
Te occidere possunt sed te edere non possunt nefas est