Support BladeForums! Paid memberships don't see ads! If you let a knife in a closet or in your collection, do you have to sharpened it from time to time or will it keep its edge as long as you don't cut anything with it ? I have a Kabar knife close to my door, just in case I need to defend myself against intruders or whatever. If I remember right, it was quite sharp back then. He has been there for some months and... I chose to use it to kill a pigeon that was - probably - hunt by a cat. He was suffering in front of my door, the cat didn't finish his job and I tried to end his pain. I raised my hand, landed a clean it, but it didn't cut through. I was surprised. Was the pigeon feathers blocking the blade or has the knife lost its edge with time ?