My Dumeril's has scares and scabs all over her head, which the previous owner admitted was from feeding live. A snake at the nearest pet store was killed by it's prey about two weeks ago. That's the only personal experience I have, but that's enough for my common sense to say "hmm... Maybe feeding live isn't as swell as people think". Perhaps I'm a hypocrite because I have fed live (when I first started keeping), and I didn't have the materials to euthanize Duma's last meal.