I just figured out what's going on.

I kept hearing all this yelling from outside, and I don't even sit next to a window.
I went into the conference room and looked out that window, and there are cops everywhere.  The emergency room is right outside.
I started to actually get worried.
Then I finally saw two youngish people wearing fluorescent pinnies, and I realized it must be a disaster drill like the one I participated in first year of med school.  That explains what all the yelling was slightly theatrical.

OK, back to my phone calls and my brownie (not actually a very good combination).

P.S. I am so excited we don't have class tonight!