http://homepage.ntlworld.com/nigel.simpson/clips/fall1.mpg
I've known 5 different people that has happened to. None of them were seriously injured. And it was kinda funny every time.
That was funny. It would definately suck though you step back hoping to find solid ground and fall down into a cellar. She should look where shes going.
It's not their fault. Some sicko designed a food storage space below the beds in berthing on submarines. A chain is (usually)put up to keep people from doing what this woman did, but that doesn't stop you from waking up and hopping out of bed just to find the floor is a lot lower than it was.