You are suddenly awakened but something is very wrong. You are underwater. Breaking the surface and gasping for breath you see your sailing vessel is merely splinters in the sea and a great Kraken thrashes overhead. You see land in the distance, but, can you make the swim?
Rich Romans raised fish in private pools at their villas. A favorite fish was lamprey, a parasitic fish which sucks off blood and flesh but made an excellent meal. A particuarly gruesome punishment for slaves was to be thrown into the lamprey pool, where their flesh was ripped from the bone by swarms of the jawless fish.