The danger of careless talk was even reflected in Tommy Handley’s popular radio show ITMA. (It’s That Man Again) where a menacing German spy would frequently appear with his heavily-accented catch-phrase, ‘Dis ist Funf speakink’.
Because of all this, newcomers to a community were often treated with reserve, not to say suspicion.
We, the children of the epoch, were certainly impressed, and we sometimes indulged in excited bouts of patriotic spy-hunting.
This book describes one such comically cockeyed episode.