The horror of work

This is quite remarkable. It is, in essence, the non-didactically politicized "real life" equivalent of Hooper's underwatched The Mangler. What we get here is the stupendous overleaping of quite real dangers in the work place (from actual hand mangling accidents to the long slow mental and physical deterioration resulting from numbing boredom and motions) to a fantasmatic Grand Guignol of how a lack of vigilance leads to... a cannister firing across the room like a warehouse bat out of hell?