Sand won't save you this time (2008)
Possibly the best of the "Things I won't work with" series: <a href="https://blogs.sciencemag.org/pipeline/archives/category/things-i-wont-work-with" rel="nofollow">https://blogs.sciencemag.org/pipeline/archives/category/thin...</a><p>I particularly like the quote "It is also hypergolic with such things as cloth, wood, and test engineers.." (hypergolic means it ignites spontaneously upon mixing)