An excerpt from Finding Nemo as told by Michael in a cheerful, sing song voice at bedtime:
"The two fish swam after the mask into the deep, dark water... even though they were physically incapable of withstanding the pressures involved... They found the mask and read the address 'P. Sherman, 42 Wallaby Way, Sydney.' After an encounter with an angler fish, Marlin and Dory quickly swam away... even though rapid decompression would surely kill them, but only if they were lucky. If they weren't they would develop a condition called the bends where gas bubbles are released into their bloodstream and joints. If they were very unlucky, it would completely destroy their brains! They would be an empty, hollow, husk of a fish... living out the rest of their lives in pain and suffering. :)"