Washing windows under normal circumstances is hard work.
Washing big windows while hanging from a rope up about hundred meters above the street in windy, cold weather, is not just hard work, it's also dangerous work.
I will never complain about washing the windows in my house ever again. There are brave men out there who have it much, much worse.
These buildings are about 20 -30 stories tall.
Yes, they made it safely to the ground.