Every time I walk by something loud I put my hand up to my ear in this exact way until I walk by the truck, machine, hammering, or whatever. COMMON SENSE says people ever since creation have been doing the exact same thing if they have any conscious observation of doing safety measures like this that help keep their hearing. This is such a useless clip that it is a sign as to how stupid and gullible the masses are to follow whatever the media show to them through the tell lie vision.