This is embarassing. A couple of weeks ago I'm at work messin' around with zip ties when a co-worker comes up to me and asked me a question. When we were done talking I turned around to walk away and for no apparent reason had closed a zip tie around the last joint on my left pointer finger. It was TIGHT! It was so tight that it started cutting off the blood flow almost instantly. In a nano-second I heard the re-assuring click from my Spyderco g-10 Endura being engaged. I had to put the tip of the blade right against my skin and use massive force on the tip to cut that zip tie. Very dangerous and VERY stupid. Lesson learned. Don't play around with zip ties and ALWAYS carry a knife that is hair poppin' sharp.