As we are drawn by intrigue (dare I admit it?) over what is going on here, we are brought closer to the conversation and potentially the inner workings of the Dirty Mind…
Let’s see… vamos a ver… Weapons for Dummies (doesn’t exist,) Calvin and Hobbes (pick one, right?) and To Serve Man… which apparently is a cookbook? So this fellow addressing Dirty isn’t just any service industry lackey, he obviously has multiple useless degrees under his belt and looks for opportunities to… well… “show off” a bit…
The Daily Trail 
To Serve Man . . . I’ll admit that one went right over my head. I suspected it might be an evangelical tract but I didn’t get around to googling it before I checked out today’s Daily Trail.
And now I’m both truly impressed with the breadth of Mr. Allen’s subtle cultural references, and slightly chilled with the thought of what he might be suggesting Dirty Dyer will be up to in this plot line.
My well-read Silver Fox recognized “To Serve Man” right away. Of course Dirty seems excited to find a fellow traveller on his road trip to Creepyville, making this sub-plot far more interesting than rounding up inappropriate circus animals and bashing clowns.
Twilight Zone brought us the great episode, “To Serve Man,” based on this short story https://en.wikipedia.org/wiki/To_Serve_Man