No I am not Imagining things.
had me woried there!
Straight from the manufacturers site. I wouldn't use it based on the intro as shown below, however it may just be simple sell blurb. Gotta love Google.
"WHY ONE-SHOT IS UNIQUE
There are three features of Black Swan's ONE-SHOT that make this a very special product:
1. The Odor Blanket - A layer of
solvent that stays on top of the sulfuric acid at all times. This
solvent limits the odors that you get when working with most sulfuric acid drain pipe openers. The is makes the product much more pleasant to work with.
2. The Chaser - Sulfuric acid will not dissolve
styrofoam, certain plastics and other
polymeric materials. The
solvents in the odor blanket
dissolve these materials. These
solvents acts as a chaser to get the materials that the sulfuric acid leaves behind. This makes ONE-SHOT a superior drain pipe opener."