In our family, we have a tradition of "White Rabbits" as the first words spoken on the first day of any new month. If one should forget, "Black Rabbits" is supposed to ward off bad luck, but only if said before midday! Ho hum. This tradition goes back a long way in our family (I remember my grandmother telling me, and my father remembers his grandfather telling him!), so none of us are entirely convinced about the exact wording at each calling, except that they involve "rabbits" and/or "white" and/or "black". We now 'permit' either "rabbits" or "white rabbits" as the first words, and always use "black rabbits" if we forget. But then life has not been fabulous, so maybe we have it wrong! ;)