Reading examples of British understatement and subtle wit.
I have read an article about Leila Khaled, the Palestinian woman who was part of a hijacking group in the early 1970s. When she tried to hijack a plane from Amsterdam to New York she was overpowered and the plane diverted to Heathrow, where she was handed over to the Police. An immigration officer visited her in jail, and asked her "Why exactly did you enter the country without a valid visa ?".
The Royal Navy is a great source of such things. For example, there was an alleged exchange between the USN and the RN as the allies closed in on Japan. An American ship signalled a British one, " How's the second largest navy in the World getting on ?". The RN commander replied "We are fine thankyou, how's the second best ?".