I'm distantly remembering old video about someone shouting at hard disk rack. Those machines are probably acting like a giant microphones when just moving air a

I'm distantly remembering old video about someone shouting at hard disk rack. Those machines are probably acting like a giant microphones when just moving air around is enough to have a too big effect on position measurements. [Engineer monitors a EUV machine] [Distant farting sound, machine instantly flashes yellow light for a brief moment] Carl [shouts back]: Bob, for fsck sake, told you to stop with the beans! [Machine throws red light and discards current wafer]. Carl [whispers to himself]: Ah crap.