We were told to kneel down and face the wall in the hallway of the school and cover ourselves with our coats, I don't recall ever being told exactly what we were hiding from, except that it was an "enemy attack" of some sort. I guess the teachers didn't want to tell us that we could be vaporized by a nuclear bomb. Someone might have figured out that our coats wouldn't help much.When my kids were younger I told them about the drills we had when I was in grade school. The nukes are inbound, get under your desk.
Favorite line from "Dr. Strangelove":
"Gentleman, you can't fight in here!! This is the War Room!!"