Very cool to see somebody saving a shark instead of just killing it. Also, What balls it takes to stick your arm into the jaws of a shark.
I think his arm is inside a pipe to protect him and his hand was removing hook beyond teeth.
That is a gaff is it not? Not a “fish hook”.
Nurse sharks are harmless to humans, so hey, why not try to save it?
A successful humane act. Bravo!