When I started diving, I read this site by the hour to learn as much as I possibly could, since I didn't know many divers to dive/practice with. On one thread there was a discussion about safety when doing boat dives. One poster mentioned bringing a bottle of water with you to be kept in a pocket and a sausage in case you ever get left by the boat. From that moment on until a few months later, I truly believed that divers carried a chunk of sausage to eat with them when they went diving in case of being forgotten by the boat. I laughed when someone showed me what a safety sausage really is. In my defense, I thought it was the worst idea in the world, to be lost floating in the ocean left to eat the saltiest/ non-nutritious item possible.