Bill Nye the Science Guy stumbled and fainted on stage at the University of Southern California last night, but instead of rushing to his aid, everyone rushed to pull out their cell phones and text about it.  According to the twits, he was unconscious on stage for about five to ten seconds before got up and spoke to the audience, then fainted again.  He got medical attention and he's okay now, but during the time he was unconscious, the only fingers lifted were on touch screens and keypads, ironically tweeting how everyone was tweeting instead of helping him.

Yahoo! News article.
L.A. Times article.