these guys make it look so easy

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Even more harrowing: the folks that wash windows on Chicago skyscrapers. They sit on a small board roped to an anchor point on the roof. They soap down a window, push off to another window a few spaces over, soap it, then back to the first, wipe it off, then wipe off the other, and keep going to another pair of windows.
And they could be 13 or more stories above the ground.
Then there are the guys using skid steers to push debris off the floors as a building is razed. The skid steer goes right to the edge–many stories above the ground.
One sudden gust of wind and there would be bets on which hit the ground first. The bottles or the trays.
Personally I’m uncomfortable with outside elevators or cable cars.