I am sorry but this simply isn't true. Ask around or search Google and you will find plenty of tales and photos of snakes that were seriously harmed by their meals. Simple as a snake striking the rat's midsection instead of the head and the rat whipping around to bite an eye or neck. I feed live because my pied male went off f/t and pre-killed and absolutely refuses to go back and he has had a few narrow escapes. Standing by with tongs to shove in the rat's mouth the moment he constricts is not much fun.