Take heart, Walter. I'm 80 and grew up in the Norfolk, VA area, home to a huge Naval port and shipyard. We had to do regular duck-and-cover drills. The idea was to fold ourselves in an accordion style to get our heads under our desks. This was supposed to protect us from being at ground zero of a nuclear blast. We all knew it was tantamount to bending over, grabbing our legs, and kissing our asses goodbye.
I'm pleased to tell you I survived the silly charades, and your kids probably will come through it, too.
Best regards,
James Hollomon