Haha!
Every Tuesday, we have a fire drill. The maintenance guy says over the tannoy "Staff announcement, we are about to test the fire alarms, please do not take any action." ...
Fire alarm goes off....
People start evactuating...
I was like, what? huh? it's just a drill.
20 seconds later, there's another tannoy.
"Staff announcement. IT WAS JUST A TEST, you did not have to take any action."
? Donuts.