My grandfather, who commanded a ship that took some of the bigwigs across the Channel on D-Day+1, had of course known the date of Overlord for some time beforehand. Not being as good at keeping secrets as he was at sailing ships he had told it to my grandmother, who in turn had told my mother (and no doubt much of Wrexham - which happily was not a town thick with German spies). So my mother was very nervous on the 6th June, listening for news of the landings on the radio, when someone offered her a cigarette to calm her nerves. In less than a month it will be her and tobacco's 70th anniversary.
I blame Hitler.