Vincent Coleman, a train dispatcher in Canada during to Halifax train disaster in 1917. A munitions ship near Halifax collided with another ship, caught fire, and drifted to shore. It was certainly going to explode, and Coleman started to evacuate, but he remembered that a passenger train with 300 people on it was scheduled to arrive shortly. He went back to his station, sent a message to the train, and the train stopped a few stops before. Coleman died along with 2000 others in the explosion.
Here was the message he sent: ‘Hold up the train. Ammunition ship afire in harbor making for Pier 6 and will explode. Guess this will be my last message. Good-bye boys.