How to Learn to Taste and Smell Drugs

A column in the forensic examiner describes this funny kind of training exercise or trick that bell used with his students when teaching them. His method was maybe sometimes a little questionable. The finger that he dipped into the liquid wasn't the same one that he tasted, so he didn't actually taste this disgusting stuff at all. And then at the end, though, bell tells him that they've missed the most important part.