Found this hand written on a sheet of yellow lined paper, among my late uncle's belongings. My aunt's brother was an avid rail-fan and modeler.
I'm not allowed to run the train
The whistle I can't blow
I'm not allowed to say how far
The RR car may go
I'm not allowed to shoot off steam
Nor even clang the bell
But let it jump the GD track
Then see who catches ****