I remeber travelling through France by train about July 1988 and being able to see the sleepers whizzing by through the toilet as I whizzed... very disorientating it was too, and made me feel quite dizzy. my memory of the first verses ar as follows
" Gentlemen will please refrain
from flushing toilets while the train
is standing in the staion for a while
we encourage contemplation
while the train is in the station
cross your legs and grit your teeth and smile

While the train is staionery
and you want to go quite heavy
do not drop your load into the bogs
tramps and hobos underneath
will get it in the eye and teeth
thats what they get for being the underdogs"

there is more which I will add later if I can remember any of it
(this is a "drunk" song , so I only remember it when Drunk

Micca