Cave Johnson here. Some of the eggheads from astronomy are jabbering about how you shouldn’t look in the direction of the sun while indoors, because apparently moon rocks don’t block UV light, and our walls are made of the darn stuff. I say ignore them. Just wear some sunglasses and you’ll be fine. And while we’re at it, let’s get those lab boys to slap a fresh coat of paint on the walls, and we’ll call it a day.