Birthday madness

Last night we had dinner with Ed and Liz from Massachusetts on their Swan 441, and we were joined by a French couple, Jean-Marc and Vivian. We had all had drinks and dinner a couple of times before and continued the conversations learning about each other, where everyone had sailed, boat gear, etc.

But in the course of the conversations we learned that Liz, Vivian and I, all shared the same birthday - October 10th! And this is a big year because our birthdays will be on 10/10/10. What are the chances of three people out of six at a social gathering having the same birthday?

And then the remaining three all have birthdays on national holidays or celebrations. Jean-Marc on Halloween, Ed on Hero's Day (Antigua) and Fay on Bastille Day. It was birthday madness night.