There are a couple of reasons for this sudden need for privacy. First off, you're craving it. You're also tired: just plain old tired: and you know the perfect recipe for self-rejuvenation: a full array of comfort food on the coffee table. Popcorn, cookies and iced coffee, for starters. Then, your favorite video and a nice, long snuggle with the dog or the cat. There. Feels better just thinking about it, huh?