Your post makes you over 140 years old.I think 1882/3 would be about the same time as my accident as I left school at 15 but definitely early 80,s ..
The video although informative is typically American takes 14mins to say what could have been explained in two, the unnecessary padding to the video and not getting to the point, is what makes most people think H&S is not worth the time to watch, you would not find this on a professionally made H&S video, they know that the audience would get bored and switch their brains off, the average attention span in a dark room is sixteen seconds, unless you are doing something very engaging.