Are you serious broken heels as a minimum, i would jump off a 12 foot wall any day and be fine, what do some of you lot go on about?? Maybe if you are 20 stone you would break something, but then you wouldnt be on a ladder cleaning windows in the first place......
But this time of year is pretty daft to go running up pitched roofs, i only do it in bright sunlight now when they are bone dry as most of the time its okay getting to the glass, but getting back to the ladder is flippin scary
