We just finished the emergency clean up, but tonight being new years eve, my theater has a orchestra concert and at midnight we launch confetti from DMX controlled confetti cannons. 15min before house I'm told go test the circuit and plug in the cannons. We tested one with a test lamp and then I said plug in the cannon. I then quickly corrected myself and said do not plug it in. But being on a radio It must have cut out and she plugged it in anyways. we tested the second one and the first cannon went off. We all had to grab brooms vacuums anything and clean it up in time for the house to open. reload the cannons and re aim them.