You do realize, I hope, that by failing to kill these people who utter such inane questions, you're setting evolution back a long, long way. Because you have the ideal location: you're in the middle of a vast ocean. People fall overboard all the time (sometimes when they're not even dead yet...) and frankly, that's just how things are. So please, remember Darwin, and do the right thing next time. And the time after that. And the time after that....