During a day of just listening in during training, big delays had developed due to bad weather. A/c on departure, running late due to inbound holding, decided to please us with his cabin message over the RTF.
Pilot: ".............and we apologise for the late running of this service. Due to Air Traffic restrictions the a/c was late arriving at LHR."
Controller: "Lying bastard"
Pilot: (very quiet)"Sorry"