By AMELIA GENTLEMAN Published: August 28, 2012  LONDON — What is the best position to adopt if you are staging a sit-down protest outside Downing Street and do not want to be dragged away by the police? How can you make your body so cumbersome that security guards will find it hard to remove you? What are your legal rights if you form a human chain stopping the traffic?If you would like to read more click HERE to go to the New York Times