This record can so easilly be broken in a larger flashmob. There is already a YouTube evidence that this one is broken: http://www.youtube.com/watch?v=yOeEOn1ug3s
This seems to be an easy attempt for anyone. I did this a year ago with three adults and felt like being able to carry another one, but there weren't any (not even a camera man). If I did it with 4 adults, would it already be broken?