Bob, you are so right. In about 1980 a young carpenter fell about 9 feet down an empty residential stairwell on a site in my village in Gloucestershire, England, which scaling from the doorway in pic. 1 is about the same height of fall. He was killed instantly, as he fell right on top of his head. I knew the constable who had to go to his house and tell his wife and kids.....
There is no excuse for the kind of risk taking shown in these pics- they could have hired and had delivered a couple of towers for a few bucks and done the job faster, with half the men and little risk of injury or fines.
"Up here for thinking, down there for dancing."
Alan