That post made me think. Ive done some stupid things in my time, not so much the height but more the stupid uninformed individual kind of thing.
Getting on one of my custys roofs to clean the valley between to adjoining rooves and not being able to get the roof ladder off by myself. At one time I was thinking of throwing it off from the apex of the roof; then the custy turned up, with me stuck on the roof with a ladder in my posession not knowing what to do with it 30 feet above ground level; and she climbed up the ladder that was on the ground and was able to help me lower the roof ladder. Needless to say the ladder on the ground wasnt footed, tied, fixed or anything and with no more than 5" protruding above the gutter line to hold onto when moving from the ladder to the roof and from the roof to the ladder.