NewTon's Laws ..Version 1.1 (for Software)

Here is the new version of the Newton's Laws applicable to Software Industry :

Law 1: Every Software Engineer continues his state of chatting or forwarding mails unless he is assigned work by external unbalanced manager.
Law 2: The rate of change in the software is directly proportional to the payment received from client and takes place at the quick rate as when deadline force is applied.
Law 3: For every Use Case Manifestation there is an equal but opposite Software Implementation.

Bonus :-) Law of Conservation of BUGS: Bugs can neither be created nor be removed from software by a developer. It can only be converted from one form to another. The total number of bugs in the software always remains constant.