I grew up watching "Victory At Sea" serials.
My dad joined that Navy in 1943 at the age of 17. He became a hard hat diver and served in both the Pacific and Atlantic Oceans. I remember something he told me when I was about 12 years old; he said, "Just before the torpedo hits, get up on your toes else the force of the explosion coming up from below the deck will break your ankles."
I think he had been drinking and remembered how it felt when his ship was sunk by a Japanese submarine.