:A previous incident of an unattended train running away and a fuel spill: "In February 2010, three MMA locomotives were left unattended by their crew in Brownville Junction, Maine, according to American records. As the air brakes failed, the locomotives rolled away down the hill, causing a crash, a sprained knee and spilling more than 1,100 litres of fuel onto the ground." Per [Global News]. Is that worth mention?