This is a little off topic, but I have a not so funny story about how not to handle muriatic acid. Two years ago I played in a softball game, slid into second and took off about a 5 sq in area of skin. After going home and taking a shower to clean the wound, I resumed my "honey-do" of getting the other shower ready for Tub and Tile paint. This prep process includes the use of muriatic acid to wash the old tile in prep for the epoxy paint to stick. Just as I was washing down the tile, I realized I was wearing shorts (to let the wound breathe) just as a bit of acid fell directly on the raw flesh. I had enough time to think "that might hurt" and then the fire started. Now mind you it wasn't all that much, but just enough to make me run down the hall, yank off my shorts, and turn on the other shower. At that point I wasn't worried about adding water to acid, I was worried about adding ALOT of water to acid. It was definitely not one of my sharper moments...but I guess we all have those