Yes wolf63, I've been driving Underground Trains for the last 28 years, and been lucky, just a few 'near misses', I drive on the Central Line, been on the District, and have a friend at Barking Dpt had three 'one unders', at my Dpt, there's one that come to mind, at North Acton there's a road bridge that goes over the track, one bloke decided to end his l;ife by jumping from the bridge in front of the train, he mistimed his jump, dived head first onto the roof of the cab, killed himself, the poor old driver went to hopspital, had to be retired, just a bag of nerves after that.
I could tell you a 101 stories not that different, but Its not only the driver thats affected, his family, the jumpers family, the people that have to clear up the mess afterwards, then their families, then the driver has to meet the deceased, family at the Coroners Court.
Apologies for carrying on a bit, its a subject I get a bit carried away with.