Different, but I have a habit of breaking valve cover bolts too, with just a screwdriver even. Click, swear, back it off a quarter turn. Often with vice grips

Different, but I have a habit of breaking valve cover bolts too, with just a screwdriver even. Click, swear, back it off a quarter turn. Often with vice grips. I've been lucky so far. Not great either is the way my impact gun is designed. You put it down on the wrong side, and the direction slider gets pushed so you're ramming it back on instead of taking it off.