I am a CBS News Producer researching a story on what some have identified as a new trend. Teens and Young Adults who are biting their girlfriend or boyfriend. These bites are on the arms, face or some other visible place. I've seen this described as a sign of affection or as a way to mark the person as "taken" and some people have suggested that it's linked to the popularity of Vampire Movies and TV sows. Have any of you seen this happening? I would like know your thoughts and opinions.