"Will Inspector Sands please go to the control room." (translation: there is a fire in the control room but the general public doesn't need to know)
"Due to a purported emergency, please leave the station immediately." (translation: now it's serious)
hardly anyone moves
"Please follow staff instructions." (translation: could folks maybe panic just a teensy bit?)
I'm almost out by this point
as I leave the building, I hear sirens in the distance
Somehow this seems extremely British.