My experience with various chemistry fora over the years has shown me that there will always be one misguided soul ("kewls" in the parlance of a certain prominent forum) asking about the red goo that keeps turning up in his nitration of phenol, or how to properly use red phosphorus + iodine in his Leuckart reaction. They are of academic interest, of course, but there is also the possibility of fishy dealings behind these questions.

How are we to handle situations like these, in which a question asked seems to display the intent of manufacturing "questionable" (insert your preferred definition here) substances?