Four, then five, older dudes at a cafe

These guys were sitting around a table at Au Coquelet, a somewhat depressing, though well-visited wifi coffeeshop/restaurant on this cold, rainy, dark night at about 8:30. Fighting a cold and a writing assignment, the oddness of these guys blended with the atmosphere, but also became unavoidable to notice/observe.

One of the dudes with a beard and glasses in halting, slow speech (slow and unsure to the point that it's surprising no one steals the floor from him),

"A male lion is roughly twice the weight of a lioness, but his heart is only 50 percent larger than hers. So, it explains a lion's overall lazier demeanor." What?

And then I notice (there's harmony in all things), the folded-paper sign: BUUG (Berkeley Unix User Group) that sits on the table.