Actually this reminds me of a situation at a party I was at Saturday night. There was a hot redhead girl there who, in addition to being hot, was actually into modding Xboxes and and is into Linux. If I were single I'd have been all over it. And the combination of the location (a college party with an average age of probably 24) and the fact that she didn't look especially young, means it never even would have occurred to me to ask her age.
So, anyway I was inside chatting with some people and suddenly I saw like five or six of my friends come inside the house from out on the patio in a big hurry. Apparently everyone was out chatting and the girl, illustrating that she's been on MySpace from nearly the beginning said, "I've had a MySpace account since I was in 8th grade." To which everyone was like, "What? Has it even been around that long?" And eventually it occurred to someone to ask, "Wait . . . how old are you." When she said 16 she was suddenly hearing crickets. It was kind of hilarious. I would have guessed 22. Danger Will Robinson.