"A most painful matter to me, as you can most readily imagine, Mr Holmes. I have been cut to the quick. I understand you have already managed several delicate cases of this sort, sir, though I presume that they were hardly from the same class of society' 'No, I am descending.' 'I beg pardon?' 'My last client of the sort was a King.' 'Oh really! I had no idea. And which king?' 'The King of Scandinavia' 'What! Had he lost his wife?' 'You can understand", said Holmes suavely, 'that I extend to the affairs of my other clients the same secrecy which I promise to you in yours."