Fifteen minutes before 8:00 pm, in the shadow of a towering anvil-shaped cloud that looked to be about 30 minutes away, a mysterious swarm of people with backpacks and shopping bags marched down to the Auditorium Shores and began to loiter around a short stone wall. The usual runners, frisbee players, and the occasional security guard watched in confusion as they stood around, waiting for something.

Others were making adjustments to their cameras, and even a news reporter or two appeared. Then, just past 8:00, the campus bell tower could be heard. Scores of pillow wielders began beating each other senseless...

It all started with this post.

Photos coming soon.