Many snake charmers live a wandering existence, visiting towns and villages on market days and during festivals. During a performance, snake charmers may take a number of precautions. The charmer typically sits out of biting range and the snake is sluggish and reluctant to attack anyway. More drastic means of protection include removing the reptile's fangs or venom glands, or even sewing the snake's mouth shut. The most popular species are those native to the snake charmer's home region, typically various kinds of cobras, though vipers and other types are also used.