Sharp slicers and such, yah you NEED to be careful. You might feel a little tickle, then realize that little nib of meat, like a little beanie weenie, is the tip of your finger. I laid a wrist open one night with a ceramic knife. It was one of those, you know, I know better than to be cutting towards myself like this moments when right when you say that, the thing slips and gets you. I was cleaning fish, and well drinking too, yes I know, im sure THAT didn't help the situation either. At that point there was NO way in hell I was going to go into the ER at 10 pm, smelling of booze with a slit wrist. I washed the thing with the veggie sprayer, poured alcohol on it, at that moment taught the cockatoo a few brand new swear words to use, and then crazy glued it shut. It healed up not too bad actually.
Another thing I already knew better but did it that night anyways, do NOT use ceramic knives if you are working around bone, you will chip them like a rednecks teeth in a heart beat if you hit bone with them or torsion against one.
Aaron