Jim makes a lot of references to things Gen Xers would get (e.g., Officer friendly, Dukes of Hazzard, the first Star Wars).

During Harry's birthday party at Arctis Tor (chapter 7), Harry freezes and blows up a Sidhe Lord in the midst of the Sidhe asking a question.  Harry answers something along the lines of "Glad you asked, there is your answer."  Was Jim purposefully making a reference to a funny scene in the movie Time Bandits?  Because if so I don't know that it quite landed without making a reference to the movie.  Maybe Harry could have said something like "I replied in full Time Banditry mode" or something like that.

Here is how the Time Bandit movie scene (sort of) went:
Underling: "But lord, if you are so powerful, why then cannot you leave this fortress?
Big Baddy blows up the underling with a gesture
Big Baddy:  "That's a good question.  The reason is (proceeds to explain why he is stuck in the fortress)

https://www.imdb.com/title/tt0081633/quotes/qt0279256