Fire Drill Meaning

(Can we verify(+) this sense?) (idiomatic) any chaotic, unexpected activity. (With the dropping of Chinese the phrase has also often lost its pejorative meaning of pointless and unproductive. In this way, fire drill is often used in the same idiomatic way putting out fires or fire fighting is used.)

Example: An organised practice to prepare occupants of an office, school or other public building for evacuation in the event of a fire.
  Since they've changed the standards again, our previous efforts now just amount to a fire drill.
  Sorry I didn't get back to you earlier: I've been involved in a fire drill all afternoon.
A rod which is rotated on a flat surface like a drill until it is hot enough to start a fire.
1999, Paul Douglas Campbell, Survival Skills of Native California, ISBN 0879059214, page 4:
  There is no machine on earth so potent, yet so simple and elegant, as the two sticks of the Native American fire drill;