Thank for your reply and comment. Commuter train in Jakarta, Indonesia, particularly economic class, usually full passengers in the morning and evening on weekday. As you can see a video in link below, some of the passengers ride on the roof and hangout of the door of the train. Because train full of passengers, reckless young man ride above the roof of the train.
http://www.pond5.com/stock-footage/6...ml?ref=NgartoF
The behavior like this one has long carried by young man even children. The police had often warned them to stay down.