I'll take the advice about the Prusic knot. I've got plenty of time to practice knot tying.
MLeake, I don't know what got to me this time. Usually, I'm in control enough not to do something stupid like letting go of the ladder. I remember pulling rusted sheet metal off the roof of an old barn and letting the wasps sting me because it would be bad to fall. I think wearing eye protection on the roof may have given a mental edge that I lacked on the tree stand ladder. I also had eye protection when stung multiple times mowing grass and it didn't bother me to be stung. It was shady at the stand and I had slipped my sunglasses into my pocket when I climbed up. I don't know if it would have made a difference or not if I had worn them.