I liked the worthless nuclear attack drills that schools used to have in the 50's-60's. Things like that are mainly just to make you feel better, as if stop/duck/cover can really make you withstand a nuclear blast.
South Park referenced this in an episode about the volcano. The town had volcano drills and showed an "informative video" In the video, they show the kid stop/duck/cover and the lava jumps harmlessly over him, but when the volcano really erupted, the lava just turned the kid into a skeleton.