A few days ago I found this knife in the middle of the road in front of my house. It is a real beauty, with a very sharp retracting blade. It even has teeth on the top of the blade. I don't know what they could possibly be for. The knife has a patent number so I looked it up on the internet. My first shock was it cost eighty to a hundred dollars. Someone lost a pretty expensive toy. The site didn't say what the knife was for, although there must have been at least fifty different versions of the same thing. It is quite menacing-looking, and I imagine it is some kind of hunting knife. If that is the case, I'm glad the person lost it. In fact, no matter what it's purpose is, I feel that it is better that it be in my hands than its previous owner's.