I always carry a knife in my pocket. I have several in my drawer and I am always on the lookout for a new one. A few weeks ago while at work, I was about 20ft in the air and wearing all my cold weather gear and a safety harness. I was have a hard time getting to my pocket so I asked another guy if he had a knife. He handed me a little bity knife with a blade about 1 1/2 inches long. I gave it a funny look but decided to try it anyway. I attempted to cut a nylon strap. I quickly handed the toy back to him and commenced to digging for my knife which easily cut the strap. People that I work with know that if something needs cutting, I have a knife that will cut it.