Here’s a pickle. This morning, in my fb "newsfeed", I noticed some questionable photos with lewd captions - among those "tagged" is my friend's teenage daughter. I know this because I’m on the kid’s “friend” list, along with several hundred others. Note that this kid didn’t post them – one of her friends did; she just got tagged.
Do I (a) tell my friend, who has asked me to keep an eye on her daughter’s fb activity? Or do I (b) confidentially tell the kid that I think the photos should be taken down? She's a very private kid, and will be mortified that I saw this.