Uh.......people, there is a good reason the bite didn't affect him.
A certain percent of venomous snake bites are what is known as "Dry Bites" where no venom is injected. Usually it's because the snake ate recently & used his venom on his prey. (That's one reason venomous snakes do their best to avoid biting defensively & try to get away from a threat. They know they'll starve if they use their venom biting something they won't eat.)
Snake venom is a very complex brew of proteins & other toxins & It takes several weeks to produce more venom.
Here is an example - a Copperhead bit him - no effect except 2 fang punctures - no venom.