Conversation with my supervisor a couple of weeks ago:

him: "What's that website that a lot of young people look at on the Internet?"
me: "Facebook?"
him: "No, where people can change their status and things."
me: "Twitter?"
him: "No. It's been criticised for a lot of violent videos and things that have been posted on it."
me: "YouTube?"
him: "Yes. Thanks."

*blink*