Anesthesiologists Descend on San Francisco

I was out and about earlier today getting coffee and noticed a really large number of people around the convention center. Not like Macworld or Oracle OpenWorld, but a lot of people. Who are they? The American Society of Anesthesiologists. They were all dressed in drab colors and were really boring looking. I am hoping that's only the day shift, because they definitely did not look like "life of the party" people. But hey, don't blame them--it's their job to put you to sleep. Right!? Okay, that's mean.