The RP: What's Up Doc? — My Five Favorite "Doc"s Who Weren't Really Doctors

Continuing my newly-established tradition of plagiarizing from Nick Hornby and sharing my pop culture Top Five lists (See my Favorite Breakup Songs , my Favorite Hoops Books, and the Most Jew-ish Gentiles), and in honor of my oldest RPette's recent acquisition of an adorable bunny (named "Louie" not "Bugs"), I ask the question that has confused, even haunted my generation: 

What's up with all of the guys named "Doc" who've never practiced medicine or even earned a graduate degree? 

Without...