In the 1980s we had the fire suppressant system in our server room upgraded and the installers test fired a cylinder of Co2. Unfortunately, someone hadn't fitte

In the 1980s we had the fire suppressant system in our server room upgraded and the installers test fired a cylinder of Co2. Unfortunately, someone hadn't fitted the discharge 'shower head' properly on the end of the outlet pipe - which for some reason had a 'j' bend in the end and so the head shot up into the false ceiling, followed by all the gas, which pressurised the void and caused the ceiling to explode into the data centre. Imagine the scene - shredded ceiling tiles and years of dust and grime everywhere! It really looked like a bomb had gone off. Fortunately there was no-one in the room during the test and everything kept running, but the clean-up took quite some time.