This is what YouTube returns if a video is blocked due to copyright issues. It was implemented as part of the new HTML5 version of the YouTube video player.
The icon is so sweet and endearing that I almost forget to be irritated because I wasn’t allowed to watch the video!
via www.youtube.com
UPDATE: Perhaps I should change that back to HTML in light of this: Meet HTML, the spec formerly known as HTML5.
Comments welcomed! Less enthusiastic about spam.