Legit just got out of a social a few minutes ago (yes, I was typing the above during the social) where everyone was like this. Dressed up, sitting on the edge of their seat, asking "smart" questions.
T-shirt and beer here, and when they finished circle jerking each other with statements like, "Playing off the last question, blah blah blah," "Similarly, blah blah blah blah," and "I'm so glad to hear that because (thing the resident was just talking about) is what I'm looking for in a program," I finally asked, "Not to ruin the serious vibe or anything, but how's the food?"
I'm gonna hold down the fort over here and ask the questions that really matter, kthnx. I learned everything I need to know because the program has much worse food benefits than the other IM backup I interviewed for on Monday, and I am not above making rank list decisions based on the food perks or lack thereof.