I read the entire Narbonic series and then I realized something. While Dave was at the bar, after his break up with Helen, lamenting about the fact that he will never have lesbian sex again, a blond girl with glasses sitting next to him looked baffled and disturbed. Later on, it was revealed that the blond girl is his daughter from the future. This takes Too Much Information to whole new levels!
While Sunday pages were normally reserved for fillers and fan art, the last Sunday of each year had "Little Dave in Slumberland". Firstly, this was an Affectionate Parody of the classic Little Nemo comic strip; secondly, when re-reading the archives, you realize that Dave's dreams are foreshadowing events that will occur in the strip in the upcoming year. This occasionally serves as Nightmare Fuel, such as dream-Helen's comment, "I am just barely ahead."