I had a dream last night that I visited Haven on a Saturday, and along with the usual gaming groups was a "superhero club."
The group was basically four stereotypical comic book dorks their leader bearing a close resemblance to The Simpsons' Comic Book Guy who decided that they were going to be superheroes in order to honor the characters they read about.
They were seated in the section of the store behind the bookshelves where some of the video shelves are. There were four people at their table. Three of them were wearing spandex uniforms that resembled the MiracleMan outfit, but instead of an MM logo on the chest, there was an SH logo (for super-hero). The fourth member of the group was dressed as The Tick.
I expressed my unease about the group to Josh, and he told me something to the effect of "they don't bother us if we don't bother them."