From News.com.au
UPDATE: A TEENAGER has died in front of his younger brother after leaning out of a moving train in Melbourne’s southeast.Police said the 17-year-old Beaumaris boy was on the Frankston-bound train with his brother and a girl about 9.20pm yesterday.
The Herald Sun understands the group entered the rear driver’s cabin and leaned out to film themselves while the train was moving
Sadly vandals breaking into cabs and doing stuff like this happens far too often. Mostly though it doesn't end in disaster.