One day a few years back I was fighting to get a ko open in a flush older 4" square outlet box in the wall. It was one of those ones where the ko die process must have been good and dull because no amount of screwdriver hitting would loosen it. So then I had an inspirational flash. I drove a self tapping screw into it and used the head of the self tapping screw to grab with my linemans pliars, and pulled inwards and got the ko loose. I put the idea out on another code site and sure enough about 3 months ago another poster repeated the idea and then claimed it as his.
