Uh oh

So there I was in Santiago, I had just bought a pen drive and I whipped out my trusty pocket knife (Kersaw assisted opening drop point),sliced open the package and it occurred to me...Why do I have my pocket knife on me?  Seems I forgot to take it out of my pocket and took it on a 3 hour flight through 2 airports.  I'm not sure to be happy I didn't lose my favorite knife or be concerned about airport security.  Yes, they use metal detectors.