worst Ive had so far is two of my snakes. First day I got my HY Diamond, she decided to try and eat my left hand. Mauled it then crushed it. Couldn't get her off for about ten minutes, turned my fingers blue and bruised all four of my main fingers, but no lingering damage, but I was sore for about a week. Bites marks were left for a week or two due to the fact she had squeezed alot of blood out of me, crushing my hand after biting. My partner helped me get her off after he brought out a thawed warmed rat and tossed it into the tub we were trying to get her into for feeding to begin with, she went straight for it. I guess from that point on we surmised she was an aggressivve feeder, but then shes bitchy at the best of times anyhow. Then there is my feisty Darwin Classic. I'm a sucker for trying to tame train my snakes. Shes only 5 mo atm and hasn't calmed down yet so bites alot. The most she has gotten me is a couple dozen times within the space of a few minutes because I was a glutton for wanting to try and pick her up by hand, training her to accept this without biting. She syill bites, bet doesnt hold on like she used to at the beginning, now she thinks shes like a viper, bite release bite release etc continuously!