Non veni pacem mittere, sed gladium.
I wore "hooks" exactly like those when I worked for NJ Bell in the early 1970's/
I have done what I thought was dangerous work my whole life, but these guys have always impressed me, when I saw pictures of the type of men they were and the work they had to do. You just knew that they had a hard life, but they did it, and without the bitching like the guys like me. And I had OSHA to protect me during my 35 years in the foundry, and now in my other endeavors. Strong men.
You had to watch out for yourself.