My school had a "lockdown containment" today. They found "ammunition" somewhere, so they locked everybody in class for 5 hours, patted a few kids down, and searched all the lockers by hand and with dogs. I, thankfully, was on a field trip, eating at a Thai restaurant while my friends were escorted to the bathroom by police officers.
Did you school ever go into a lockdown, containment (when they run class, but you can't leave), or any other emergency status? What was that like?
Have you been absent from (something) and been lucky enough to miss a crappy event?