Sand Won't Save You This Time: the story of chlorine trifluoride

I like the last line "For dealing with this situation, I have always recommended a good pair of running shoes."

"If in doubt, run." is good advice in most any situation.

Sound like much more fun that the ammonium tri-iodide that we made in high school chemistry lab.

If you let it react with water it gets to be even more fun (http://en.wikipedia.org/wiki/Hydrofluoric_acid)