WG Grace, it's famously said, used to call "the lady" when tossing up. Seeing as coins of Victorian times had Her Majesty Queen Victoria on one side and Lady Britannia on the other, he was a certain winner.
True or not, the good Doctor always knew what to do once he had won the toss and that was to bat. The exception being when he though conditions favoured the bowling. The he would think about it and still bat.