Safety Should Come First
Being an engineer entails making use of whatever resources are available. If someone is starting to work with something that involves electric sparks, it is usually recommended to put on a protective helmet. What if you don’t have access to one? A plastic bag may or may not be your savior.
This guy made use of what he had, but we are concerned about how effective it would be. Is he aware of what he’s doing? Or perhaps the better question is, “What is he doing?” We’ll have to make do with the unknown since only thinking about what he’s doing is making our brain hurt.