Hah, this game is called "deadline chicken", where coworkers who are missing their deadline try to postpone this news until somebody else admits he/she can't make it. If the deadline is moved without having been discovered, you're the winner.
There's nothing quite like working on an "emergency" having your boss ask every 3 minutes how you're doing. Then you find the culprit but someone from another department is in charge. So you send her an urgent e-mail and you get a vacation response until end of the month.
Suddenly the whole commotion stops dead, and the subject is never raised again.