On-board nurse and stewardess, Violet Jessop, had something of a disastrous career. Not only was she a survivor of the sinking of the Titanic, but she was also on board Titanic's sister ship, Britannic, when it sank. Unbelievably, she was also a passenger on the RMS Olympic during a collision. With a track record like that, she probably took to sleeping in a life jacket.