Eclipse

Handling (it's not actually called "hand ball") is called when a player deliberately touches the ball with any part of their arm (not just the hands).  The key word is "deliberate" touching.  Therefore, reflexsively putting your arms up to protect your face from a fast moving ball should not be called as a foul.  A ball that accidentally hits a players arm should not be called, even if it then happens to fall to a very advantageous position for the player.  The judgement of deliberateness must be made by the referee.