Slightly different subject, does anyone use fall arrest harnesses? if you do, apart from having a rescue plan in place, save your own skin and make sure you have a foot loop attached, so if you do fall you can stand on the loop to take the weight off the harness until you get down. if you are left hanging for more than say 3-5 mins and they get you down and lay you on the floor you will end up dead. Simple, cheap, but may save your life. It's the best working at height information i have ever had.