Like I stated, wherever this is acceptable behavior, it's because the concept of successful project is redefined to accept this. The reality is that you didn't really hit the deadline, you just strongarmed everyone into accepting the fact that you cheated by redefining rules.
Sadly, this can be a very important component to your success as a developer (or anything else) in corporate America.
Sadly, this can be a very important component to your success as a developer (or anything else) in corporate America.