As a reminder to everyone:
The procedure for releasing the parking brake is specific. You release the parking brake when the aircraft is ready for pushback. That means all cargo bins closed, all doors closed, the flight attendents ready for taxi and acars numbers returned. I know in the past everyone's been anxious to get the main door closed and release the brake to get that D zero on record. However, everyone should follow the policy as written to avoid discipline by the company.
I have much better than that, sir... Much better.