From David Hoskin, Driffield, East Yorkshire, UK
Readers gave several excellent answers to a question about how many rotors on a key safe one should move to lock it (The Last Word, 26 January). These will doubtless find applications in others' everyday lives. A problem is that, sadly, not all honest householders read Â鶹´«Ã½ and, presumably, a number of intelligent rogues do.
