Four vehicles derailed
"A Polish teenager allegedly turned the tram system in the city of Lodz into his own personal train set, triggering chaos and derailing four vehicles in the process. Twelve people were injured in one of the incidents."
I can't quite work out if these were four vehicles derailed as a result of one signal change or if they were separate acts.
If the former, I can see how it was a prank gone wrong and it'd perhaps be a little shortsighted to be too harsh on him.
If the latter, lock away the key!
Biting the hand that feeds IT
