But, in the UK, we did have unannounced and regular drills, (we didn't know they were drills), to ensure people knew what to do in an emergency, so it became second-nature.

One of the great british exports.

I previously worked in Oman, where it seems they have remembered everything they learned from the Brits, but which we in the UK quickly forgot. Fire drills happen at the colleges with military precision...I wonder if in HK they still do fire drills?