I vaguely remember something like

Tell me Mr. tram conductor
Said the woman small and frail
Will the electric current kill me
If I put my foot upon the rail
Oh no gentle lady
The kind conductor said
Unless you lift your other leg up
And touch the live wire overhead

and there was something about the train standing in a station and a student in a hurry rushes over the bridge and falls down the steps. When asked if he missed his step he says 'no I hit every bloody one'.