Japanese Woman Comes Out of Closet

I loved this article. It's a story about a homeless Japanese woman who lived in a man's closet for a year without the guy knowing. He eventually figured it out when food began to disappear. This article emphasizes how much space exists in a person's home that they don't see very often. Before my mom sold our house she and I were the only people living there, alongside the three vacant bedrooms. Months went by before I went into some of the bedrooms in the basement. Someone could have easily lived there. 

How much space is too much space? I am usually struck by the immensity of some houses (the Biltmore estate, for example), but at the end of the day I think all that unused space is a waste. You couldn't possibly need so many bedrooms, gardens and ballrooms.  

And how creepy is it to think that someone could be living in your closet without your knowledge? I wonder how easy it is to get into a house undetected. A person could be stalking you in your own home right now! Check your closets! Look under your rugs! I almost want to try it myself. Not for the creep factor, for scientific reasons.