Let's see... I must just be cursed or something... of my corns, only my '03 hurricane snow motley bites. He's quite aggressive, but he calms down, and he's small enough so that at most it's a few pinpricks.
I have one kingsnake that can't quite figure out that my fingers aren't mice. He chomps on me given the slightest provocation and he won't let go. He's such a huge snake (5+ feet) that he's got a very strong bite, and loves to wrap himself around his cage furniture. When I handle him I keep a small lid full of alcohol so that I can make him let go. If he gets me I dab my pinkie finger of the unbitten hand in the alcohol and hold it up to his nose without touching him. Most the time that is enough to make him let go. He just loves to grab hold because he's certain that everything is a mouse. When he bites I usually bleed quite freely from the wound, but it never causes me a problem.
The hatchlings fresh out of the egg are always the most agressive, my Blotched king eggs (the finger-eater is a blotched) are the MOST agressive, little vicious critters! Little worms acting like they are King Kong or T.Rex.