I just went to add someone to my Facebook list. It's someone I've spoken to once on a professional topic, but hey, it was a nice conversation, and information about this person came through my Facebook newsfeed, and if I can have all these friends from my past lives, why not?
This time, however, I got an interesting message from Facebook. The button didn't just say "Send Friend Request"....it asked "Are you Sure You Know Zelda?" (Not her real name). And then, there was a whole disclaimer, which I found to be a bit threatening: