.Consider the following shocking text:A NOTICE circulating on the Internet demands immediate action toprotect people from the "killer" chemical dihydrogen monoxide (DHMO)."Dihydrogen monoxide is colourless, odourless, tasteless, and killsuncounted thousands of people each year," the notice warns. "Most ofthese deaths are caused by accidental inhalation of DHMO, but the 5dangers of dihydrogen monoxide do not end there....