Sometimes babies are a bit nippy, but they usually calm down quite nicely after a few weeks of handling. It's been a long time since I had a baby snake of any kind, but I have had several very snappy babies, including various rat snakes, retics and Burmese. The trick is to get in there and handle it as much as possible. If it is really nasty, and/or you really don't like getting bitten, get a nice pair of leather work gloves that extend past your wrist and use them to handle the snake. That will help keep you calm while handling an aggressive snake. After a few weeks, the snake should calm down quite nicely. But interaction remains the key -- keep handling the snake regularly, and you shouldn't have any problems.
Another tip to use when removing the snake from its cage with bare hands: Use an open palm and sort of scoop the snake into your hand. Should the snake decide to bite, it will most likely get the flat, fleshy part of your palm, which doesn't make for a bad bite at all. Their little teeth can't dig into to your hand at that angle, and many times they don't even break the skin. If you try to pick up the snake with the back of your hand exposed (such as just reaching in to grab it), it can make for a pretty uncomfortable bite. I don't care how small a snake is -- I do not like getting bitten on the back of my hand. Just a few tricks I've learned over the last 12 or so years.
RP