Ironically, in his spare time—heaven knows where he finds it!—he acts as a consulting detective and has been kind enough to say that he uses as his model a certain practitioner in Baker Street. I have warned him that if he follows my example any more closely, he will end up as the hero of some cosy detective stories written by some middle-aged lady with literary pretensions in which he uses his limited English and his little grey cells to solve some exotic conundrum. What a fate!