I think this stuff was originally developed for medical purposes, they just found out it was good for gluing construction workers to I-beams as a bonus (remember those commercials?)
Ben, I once ran a chefs knife most of the way through the palm of my hand (doc said it was a 1/4 inch from going through) no amount of crazy glue would have fixed that. nicked a big vein too, bled like crazy.
Why am I telling this story, it's tmi, eh? Avoiding writing a lesson plan, I suppose.