Sydney Trains used videos shared on Snapchat to identify a group of teenagers who filmed themselves playing “chicken” with oncoming trains.The transport authority released video of two separate incidents on their rail network on May 3. The first were videos posted by teenagers on Snapchat, showing one of them using a lock pick to break into the guard’s cabin on a train and hang out of an open door, narrowly avoiding a collision with an oncoming train and tunnel walls.The second video, taken in April showed other passengers almost being flattened by a train near Petersham, in the city’s inner west. 9 News reported the group were trying to break into the rear crew cabin and were forced to dodge the oncoming express service.A Sydney Trains spokesperson told Storyful the people in the Snapchat videos have been identified and penalties for the offence could include fines of up to $5,500.“These actions are extremely dangerous, stupid and are traumatic for our customers, drivers, guards and station staff,” they said. “These incidents can cause significant delay and disruption to services. For example, the near miss at Petersham delayed 65 trains and caused two cancellations.” Credit: Sydney Trains via Storyful