After reading this thread, I now know I haven't seen anything as bad as I might have thought!
My only horror story is mostly horrific because it was my first snake, and it was only his second or third feeding. I was feeding a f/t fuzzy and he struck hard and caused a huge explosion of mouse guts out the back end of the mouse. It went all over his hide, his water dish, his tank, himself. Gross. I was relieved to learn that it was a fairly uncommon occurence, since it hasn't happened since then.