I've been working as an engineer in and around factories and assembly lines for about 27 years now. Oh the crazy sh*t I have seen. Maybe that's why I think this scene from the 1936 film "Modern Times" starring Charlie Chaplain as an overworked and stressed out factory rat is so freaking hilarious. And notice how so much future technology that had not been invented yet was written into the storyline.
I rate this as one of the funniest scenes in Hollywood history. For your viewing pleasure, I present the factory scene from Modern Times..