Some people are just too literal. "Bottomless" is a metaphor for free refills (I'm pretty sure), but there's always gotta be a smart aleck who wants to prove you wrong in the most technical way. For this guy, there's a lot more to the story.
Have we learned our lesson yet? When you've got a good thing, questioning its literal accuracy can lead to it not being a good thing anymore. This comic is a collaboration between Zach Cranor at Last Place Comics and Jon Fortenbury at Just Jon Comic. When you take a good look, it becomes clear that Jon is the protagonist in this saga, a riff on his practical, reality-based straight man persona in the comic who might just get into a argument about a bucket of popcorn. -via reddit