A guy I used to work with had his climber slip with him a few years ago and he wasn't wearing a harness and his legs got caught up in the climber and he was hanging upside down,he had a cell phone in his shirt pocket and luckily it was buttoned and didn't fall out so he was able to call for help,long story short is he hung there for hours and they tried to help him by climbing up with other climbers but couldn't get to him,alabama power had to bring a boom truck in to get him out,very lucky to be alive after hanging that long,I might climb a time or two a year now,I'd just assume sit on the ground