I thought about this with the recent RyanAir/Volcano argument. Broadly, their CEO was arguing that they were being prevented by the Civil Aviation Authority when it was perfectly safe. It seemed to me one way out of the dilemma could be that in that situation they might be allowed to fly providing the board members sign a letter for every such flight accepting that they are flying against the advice of the regulator and they accept that they personally will be guilty of manslaughter if the plane crashes. This letter must be handed in to the air traffic services before the flight will be authorised.

It might make them pause for thought a little!