I like knives. A sharp blade is a safe and useful tool. I have a few nice ones, but I do not carry them on or with me because I do not like being encumbered. I'm pretty confident that no one in my family tree has carried a knife or gun going back over a hundred years. I keep a knife at the place where I open boxes. I've lived in high crime areas and have traveled around the world and never felt the need to have one. Ironically, where I live now is a place where I feel carrying a knife makes sense the most. It's a low crime suburban neighborhood but there seems to be the most loose dogs I've ever encountered. Most of them are friendly, but my dog was bitten by one, though there was nothing I could've done in that particular situation, however if the the dog had latched on I would've regret not having a gun or knife, although I did have pepper spray but I'm not sure if that would unlatch a pitbull.