You broke it? Heck I removed mine, it would always end up being locked at the most inopportune moment.
That said, I need to follow this thread, I've broken the tip on mine and the assist spring gave out.
I've used it to pry paint can lids, pry on other stuff, cut wire, do all kind of ridiculous stuff one normally wouldn't do with a knife, but then I tried to tighten one little light switch cover plate screw and almost an inch snapped off. I was pissed. And I want to get it fixed. It was an anniversary gift from my wife, first year married.