Bought a new C.S Osborne #70 round knife, and was making this sheath for it when I actually read the warning sticker:   #1 - I'd like to know how this knife can have a cancer risk #2 Reproductive harm? I assume that they mean in some way other than dropping it in your lap. Yes, it seems like a joke, but I went to the website listed, and it is indeed about California Prop 65 warnings requirements, so, SOMEBODY is serious about this. Which makes it even more of a joke, depending