not only cordless....
I was whacked in the jaw by a 18V Dewalt cordless when drilling overhead through a joist. When drills catch, bad things happen whether hand held or on the drill press.
Keep your face away from the body of the drill if possible, brace yourself if on a ladder, slow down when about to break through the other side, use sharp drills so you don't have to push so hard, beware of self-augering bits that pull themselves into the work, no matter what type of drill you are using.
On a drill press, secure the work piece and use a backer to avoid drilling into your table top. It also makes for a cleaner hole in wood.
The answer to your question will only be as detailed and specific as the question is detailed and specific. Good questions also include a sketch or a photo that illustrates your issue. (:< D)