 When Munch wonders how Romans become Italians , he asks when " Friends , Romans , countrymen ; lend me your ears " turned into " Hey , yo ! " The former line is from the William Shakespeare play Julius Caesar . Munch says , " Great , let 's arrest Axl Rose " , a Guns N ' Roses musician , when he is told the suspect in a murder is blond . During one scene , the detectives eat steamed crabs . This was deliberately included in the episode to reflect the culinary culture of Baltimore , where eating crabs is extremely popular . During a discussion about Pembleton , Crosetti compares him to the lone wolf character played by actor Gary Cooper in the 1952 western film High Noon ; when trying to recall the title of the film , Crosetti said the character had a New York City type of attitude , prompting Lewis to believe he is referring to the 1942 baseball film The Pride of the Yankees , also starring Cooper . 
