Connie and Snakey are right. Tapping a blood on the head with a hook will probably have the opposite reaction that you're looking for. I personally won't use a hook for any of my bloods, even the meanest ones. When I'm having to handle my meaner bloods, I wear a Carhartt coat and leather gloves and pick them up like any other snake. Back to the original question a little bit though, I've never had a blood chew on me. I've had a few hold on, but most of the time they let go pretty quickly. They just hit really hard. If you are going to get a hook, make sure you use one designed for large snakes. They are wider and don't have a pointed end.