I'm cool with medical Docs introducing themselves as "Doc Smith" or whatever. I mean, it is nice to know there is a doctor in the house if anything goes wrong. If you are like a Doc of history or some crap, then ya, woof guy, no thanks. Worst part is it is those Docs of stuff like history who are most adamant about being called Doc. I get it though, you spend your whole life studying the Monks and Cluny or some crap and you don't really get much clout out of it. That title is like a medal that says, "this means something." Even though it really just means "I know a lot about history, geography or something.