[kach22i]

Originally Posted by Tony Z

For what its worth....

I remember hearing about this on the radio back in 1994 or 1995.
This article is pretty much exactly what I remember
https://www.math.psu.edu/tseng/H2Ojoke.html

How very clever, I guess.

https://en.wikipedia.org/wiki/Dihydrogen_monoxide_hoax

The dihydrogen monoxide hoax involves calling water by the unfamiliar chemical name "dihydrogen monoxide" (DHMO), and listing some of water's effects in an alarming manner, such as the fact that it accelerates corrosion and can cause severe burns. The hoax often calls for dihydrogen monoxide to be regulated, labeled as hazardous, or banned. It illustrates how the lack of scientific literacy and an exaggerated analysis can lead to misplaced fears.[1]........................

History[edit]
A 1983 April Fools' Day edition of the Durand Express, a weekly newspaper in Durand, Michigan, reported that "dihydrogen oxide" had been found in the city's water pipes, and warned that it was fatal if inhaled, and could produce blistering vapors.[3] The first appearance of the hoax on the internet was attributed by the Pittsburgh Post-Gazette to the so-called "Coalition to Ban Dihydrogen Monoxide",[4][5] a parody organization started by UC Santa Cruz student Craig Jackson following the on-campus postings and initial newsgroup discussions.

Kids are mean.