RE: the lower deck of the titanic locked inyour only hope for salvation is to stay with the ship! After all the captain and the crew are all still on so why jump into the water and a certain death... staying with the ship may result in the same fate but maybe you will be rescued.
I suggest you sit back on the deck chairs, grab a brandy, listen to the band play and pray like hell that the rescue ships come before the water comes in over the deck!
Lousy analogy, but may be fitting in the circumstances. Apologies to all the sailors out there.