like bahri! we gave him a camera and asked him to film his trip to work. even with the electricity lines and pylons just above his head, he's not scared. >> it's a bit nervewracking the first time you're up here. but you get used to it. it's better than being down below in the carriage, where you virtually suffocate. >> i'd rather be up here with my friend. >> but accidents are commonplace. it's not unusual for train surfers like bahri to fall off trains or get electrocuted. the rail system estimates that at least 3 people die every month. there are no official figures. now the rail company is clamping down on train surfers. with concrete balls. encased in iron, they weigh 3 kilos and hang down just 25 centimeters above the roof of the trains. the rail company hopes they'll act as a deterrent. they're confident they'll stop the train surfers. it's a draconian measure, but they're desperate. >> we've tried everything. we've put oil on the train roofs, barbed wire. nothing worked. these are shock tactics. hopefully it will put people off! >> human rights act