I heard snake venom is like that. http://www.dailymail.co.uk/news/article-3410065/The-man-immune-snake-venom-Amateur-scientist-inflicts-bites-bold-dangerous-at

I heard snake venom is like that. http://www.dailymail.co.uk/news/article-3410065/The-man-immune-snake-venom-Amateur-scientist-inflicts-bites-bold-dangerous-attempt-develop-vaccines.html http://www.dailymail.co.uk/news/article-3410065/The-man-immu...