premise:  Joe and Fred like to scuba dive in Puget Sound. One time they found a big wolf eel underwater. The fish sunk his teeth deeply into Joe's scalp. Fred cut of the head of the fish while it was still attached to Joe. Only a doctor at the hospital could safely remove the fish head.
hypothesis:  Joe got too close to the eel. ends after the eel sunk its teeth into Joes's scalp 