For those of you who don't know, Derek Lowe is a professional chemist who writes about drug discovery in the pharmaceutical industry. Among other things, he writes about chemicals that are so toxic, smelly, explosive, or otherwise unpleasant that he refuses to deal with them. Those weblog posts are both informative and hilarious.

Here's a sample:

http://pipeline.corante.com/archives/things_i_wont_work_with...