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why did he hit you in the head?
Different breed of men. I used to work in shipyards a lot for the navy (not building, inspecting) and recall a time after work in a shipyard haunt where they had big, heavy ceramic mugs that you could buy and have incribed with your name. Then it would be left there for you to use whenever you came in. One guy, for no obvious reason, grabbed one off the bar and smashed it over another guys head. From the look of it many stitches were required. The guy who got hit stared for a moment in shock and then said "You broke my ----ing mug!" and the fists began to fly.
Some people don't need hard hats I guess.
40 years ago I worked in manholes as a splicer.
You would be surprised what people would try and throw down
a manhole while driving by in a car.
Beer bottles were common - so you also had eye protection on
due to the shattering glass.
Someone using a chipping gun inside a ship is about as loud and noisy as you can get.
Even if you have ear plugs it’s still loud. Without ear plugs it’s like you have your head in a bell and someone is hitting it with a hammer about 60-100 times per minute.
He just wanted to stop the noise.