I have done it in the past we all prob have somewhere
Going back many years working for a firm on job and knock, job in Ormskirk, office 4 stories high, ( 3 floors above shops ) had a concrete ledge about 4" thick at bottom of windows and same along top, the ground around the building was sloped so would get it at one end and shimmy along the ledge around the building......... At the time we used to think it was hilarious coz we would do the job in just over a hour, book in most of the day
Wouldn't dare dream of doing some of the things back then today.
Still a very sad time for his family tho, even if you don't agree with his style of work.