And other similar 'coded' messages relayed by supermarket/football stadia/London Underground etc tannoy systems. Generally meaning 'HOLY SHIT, WE'RE ON FIRE!' or 'TERRORIST! TERRORIST! arrrrtGGGHG!'
I hear these quite a lot (presumably being tested), and they always scare the shit out of me. Can't they get better codes?
My boss is back in 25 minutes, FYI