Oxygen mask may drop at any time?

Our flight to Lahore, Pakistan started out normally with a ride to the airport. We took a bit of a detour because road blocks were set up on the airport road with security checks. Apparently someone important was coming or going. We made good time by taking an alternate route and only went through security entering the airport.

We were early so we sat down in the outside lobby ( I don't know how else to describe it as the outside wall was missing to allow the breeze to keep the area cool. ) We got a drink and lit our cigars. Very relaxing with a view on McDonald's across the street. Security was ever present, walking around, carrying serious rifles. Azhar spoke to them and we got a photo shoot going with the guards and McDonalds in the background. (The photo is back lit and the white van stopped in front of McDonald's. Trust me, there is a McDonald's there.) The senior guard asked me how I liked Pakistan.
I don't believe he thought that foreigners could like his country but I agreed that Pakistan was wonderful, so far.

Well, through check-in where Azhar had to pay C$12 because of overweight bags. I of course was okay. Anyway, on to the air plain.

The flights time to Lahore from Karachi is 1 hour 16 minutes. We were flying at 38,000 feet about 45 minutes out of Karachi when this announcement came over the PA system.

"Ladies and gentlemen, we are experiencing a rapid decompression in the airplane, please distinguish any cigarettes and return to your seats and fasten your seat belt. The oxygen masks may drop at any moment, Please place them on your face and tighten...." You probably know the rest of the message but the first part was new to me!

There were a few surprised faces around me as we waited for the "action". You know? The nose of the plane heading perilously towards earth at a harrowing speed with the deafening roar of straining jet turbines. Well, nothing happened. We just continued on our way with no change in altitude and no further comments over the PA.

We arrived unscathed in Lahore. Got our bags and made our way to the hotel shuttle van.

While we were checking in at the hotel a flight crew arrived and were also checking in. Azhar asked the pilot if he was on the Karachi to Lahore route. He was and continued interrogation by Azhar resulted in the following information.

The announcement heard was a recorded message that was initiated mistakenly.