afternoon all :)about ten years ago iwas cleaning the top of a three storey town house i leand out to clean the left hand side of the window,the ladder rolled with me hanging on uder neeth, the ladder bounced down the wall about 6ft which seemed more like 20ft then i came down the ladder under neeth swinging like a monkey till i was on the ground,i tell you what i have never s..t my self as when that happend,carried on doing three storeys up untill 5 yrs ago