Yikes. Here's a video taken from the front of a freight train as it barrels head-on into another freight train. No one was killed, thankfully, but you can see a dude bailing from the oncoming train right before it hits.
This wreck happened at 5.54am on June 24, 2006 between two Burlington Northern Santa Fe trains. As I said, no one was killed, but the crew on the train with the camera was seriously hurt. Good lord. [Neatorama]