Thank goodness for your harness. It never ceases to amaze me how many people don't wear a harness. My uncle fell from a cottonwood a few years ago, broke his ribs, internal bleeding, broke his hand, tore his rotator cuff and still has problems. The year before his nephew fell from a cottonwood. My neighbor's boy fell from a tree while gun hunting. My friend and I took our climbers and his exact words were 'just so you know, I'm not wearing my harness. On a windy day I want to have a chance if the tree snaps'. He had a similar situation as you were his bottom part of the climber slipped off. I heard a low 'help, help' to see him hanging from the top part with his body fully extended. I thought he was going to fall, I was going to have to call 911. Luckily, he recovered. I never said a thing. I think he learned his lesson to wear a harness. . .at least I hope he did. I usually tell these people I have a few extra harnesses. Please don't forget to check if you need to replace the harness after a fall.