Facebook knows you are a Stalker!

The other day, I was logging into my account and a "captcha," which is a type of challenge-response test where one types in a presented code to verify that they are human, popped up. Ironically, I have failed many a time to correctly enter this code forcing me to often question my own humanity but that is besides the point. Here is the code it generated when I logged on::

So Facebook not only wants to verify that you are human. It also wants to verify if you are a STALKER! I wonder if they offer you some kind of premium lifetime membership if you are??