There used to be a longish stop at our local
station when the guard took the opportunity to have his tea on the
platform. On one occasion an impatient passenger, knowing that the time
for departure had come and gone, finally asked the guard why the train had
"She canna stert till A blaw ma whussle"
came the official explanation.
"Then blow your whistle" protested the
"An hou kin A blaw ma whussle" replied the
aggrieved guard "whan ma mou's fu o biscuits?"