Description: The central story - an RAF pilot, disappointed at being left behind so another man can lead a raid, tells his girlfriend why he is depressed, but is then called to lead the raid after all. The girl, depressed in turn, tells another girl, who mentions the forthcoming raid in a bar. The barkeeper, a spy, passes the message on, in an amusement arcade; his contact tips off the Luftwaffe. A security officer, however, overheard the incident at the bar - the raid is called off, and the spy arrested. This story is presented by the same security officer as an example of the need for caution in short introductory and closing sequences, with comedy overtones.