So I went to that conference recently. And a big name (a BIG name) in the field was talking about surgical safety. He mentioned that every time, one should introduce yourself to the others in the OR, because you probably wouldn't know everyone in the room.
I started laughing out loud. I pointed out that I knew the names of every single OR tech and nurse at our hospital (there's only 20 or so). Not only do we in smaller towns know that, we frequently know the kids' names and other small talk stuff.
Tertiary docs. HA!