You have to use hydroflouric acid. No thanks, I'm out http://blogs.sciencemag.org/pipeline/archives/2004/03/03/things_i_wont_touch_1 http://blogs.sciencemag.or

You have to use hydroflouric acid. No thanks, I'm out http://blogs.sciencemag.org/pipeline/archives/2004/03/03/things_i_wont_touch_1 http://blogs.sciencemag.org/pipeline/archives/2004/03/03/thi...