If my DH knew how dangerous a rotary cutter can be, I'd be back to cutting out my fabrics with scissors. Thankfully, I haven't had an accident with it yet (knock on wood), but I've cut myself a couple times with a pocket knife and with a piece of metal flashing. Funny enough, I don't have kitchen knife accidents, but did cut the very tip of my middle finger off with a mandoline slicer, The area grew back, but doesn't have any color.