Oh, and on a side note, I bought some Boat Hull cleaner to clean the water line scum off the side of my boat. It was stained yellow/brown along the water line and Simple Green and pressure washer wouldn't touch it. I sprayed some of this stuff on and it wiped right off with zero effort whatsoever. I inhaled some of the vapors which was nasty so I THEN decided to read the label. It says to avoid contact with skin and eyes as severe burning would occur and that the vapors are very harmful and if inhaled to get fresh air immediately. It's fricken Hydrochloric acid

. Luckily I did walk out into the wind and took several deep breaths when I inhaled the vapors. I think I'll be OK, after all, I could always use the extra thumbs.
Oh, and I of course did this with bare hands too.