I feed live, and have fed live for a few years now, and have had zero issues to speak of. Done responsibly, live feeding is fine. Of course, there is always the chance of a bite or a scratch, but the chance is not great, and if you are attentive, the chance of something happening is even less. Then again, feeding f/t, there is always a chance of not fully thawing or cooking the prey item, which can cause damage to your snake. I'm not advocating one method over the other, and bad things can happen either way, so whichever suits you, just be attentive.