hey, i'm all for being careful. i try to wear a mask when working with galv like i said. i actually hate the stuff and go out of my way not to use it. and i wasn't saying holding your breath was good enough, but it does help if all you have to do is cut one piece. i can hold my breath the time it takes to make the cut and step away and never even smell it. you couldn't do it if the piece was longer than a couple of inches. i have gotten a headache several different times years ago. i think the chances of galv metal killing you in one time is pretty darn low. is it worth taking a chance? no, but should people go around thinking it's that dangerous- prob not. that's all i was sayin.