I work in a completely different industry but these lessons are very applicable to my industry and many others. I hope people watch these, learn, and apply these lessons.In electrical engineering, I have designed stations for 95% alcohol tanker unloading. Called a grounding indicator, it has a clamp you attach to the fuel tanker which then sends a signal to the control station, which only after it has been properly grounded, will allow the flow of alcohol to start. This guarantees that no static electricity can be discharged while unloading.