Reminds me of my first job processing radar data on a Masscomp mini-computer. The full processing was a bunch of simple c programs all unix piped together into

Reminds me of my first job processing radar data on a Masscomp mini-computer. The full processing was a bunch of simple c programs all unix piped together into a processing chain. Simple and elegant. We appeared to have a persistent bug though, processing left running overnight always seemed to crash. So after a couple of nights I stayed in the lab to try and see what the cause was. At 7:30pm the lab door opened and in walked the cleaner who reached down and unplugged the computer so that he could plug in the vacuum cleaner. Problem solved.