Robert Bonomi:
Would you believe "Carbon tetra-chloride"?
It _does_ extinguish fires. But the gas it givesoff is rather dangerous.

Oleg Lego:
Folks who made hats used to use 'carbon-tet', and it affected their
brains. Hence the phrase "Mad as a hatter".

Nope. That was mercury, not carbon tet.
--
Mark Brader And as in nerdish thought he stood,
Toronto the Jargontalk, with awk and grep,
Came geeking through the Cobol wood,
and edlin as it schlepped.
--Larry Colen (after Lewis Carroll)