Those particular meetings weren't in the kitchen, but in what some called the "bean bag room". It was a largish office space mostly dedicated to impromptu meetings. No chairs or tables, just some bean bags and a couple of the ever-present white boards. It was (if I can keep my sense of direction straight) the last office at the east end of the main hall, just past Neil's office and Con and Betsy's office. The kitchen was further west, past the "lobby" (all 14 sq ft of it), the server room, and a couple of other offices. The end-of-hall location of the bean bag room meant that it shared at least one, possibly two walls with the dentist office. The bean bag room eventually briefly held a pinball machine or two for a short time before we expanded at Far West and got some half finished-out room in the middle of the building (same floor) where the ping-pong table and pinball machine got relocated.

Here's one of the gifs (used to be animated; not sure what happened) that I recall burying somewhere in the doc library. It was an homage to the "Mars Attacks" pinball machine we had in the first building off of MoPac. As I recall, Manweiler and I were in competition to see who could waste more of their day at that machine. We were lightyears ahead of anyone else for that honor.

Very belated comment(s): There were Easter eggs in the GUI in pretty much every release. I even stuck some in the doc library once or twice. Couldn't tell you where or how to find them anymore. And, agreeing with Mark, if Metallica was in the GUI, there's a 99.999% chance it was Hilton.