`` i know we agreed i should manage it , but matters have arisen so that - `` `` of course , laurence , you need say nothing more , '' she interrupted , in practical tones , leaving him in some despair of the discretion of all his fellow aviators ; it was such a settled part of his understanding of shipboard life , that one should pretend not to have heard , even what of necessity had been perfectly audible , that he hardly knew how to answer their frankness , `` and i will give him a private dinner , instead of making it a common one with all of us , so there will be no difficulty .