Once an urban myth takes hold, it never seems to die. For instance, the one that says an undercover agent has to admit that they are police officers if you ask them outright. (I guess the people who believe this have never seen an episode of The Wire or Miami Vice.) So it was no surprise that as I negotiated a deal with a drug dealer for the sixth time, for the sixth time he asked me if I was an undercover police officer. After assuring him I wasn’t, he produced an 8-ball of crystal meth, which I accepted and replaced with the cash.