I can't speak of experience at Scholl, I only interviewed at DMU (I had subsequent dates set up, but DMU was my first choice and I was low on funds, so when I got the acceptance, I took it).
Here's a link to the interview feedback for Scholl, I think it may answer a lot of questions you might have (specific questions asked of candidates, type of interview, etc.) The curveball questions that don't seem to be related are a bit trickier and unexpected, but as long as you know who you are and why you did what you did, and why you're doing what you're doing, you'll be good.
http://studentdoctor.net/schools/school/scholl/survey/26
Honestly, other than the few minutes taken to actually do the interview, everything else was pretty laid back. I like that apparently Scholl does the interview first thing in the morning, because when I did mine at about 2pm after a whole morning of campus tours and talking with faculty, it was after hours of nervousness.
Everything was pretty much what I expected, but I can't stress enough that you should have some questions to ask the staff (things that are a bit past the superficial level, that you could have just found if you looked online). They asked me if I had any, and I did but I just couldn't remember them, and when I said no they kind of looked at me funny and said they liked it better when students had visited other schools first because they had questions.
A couple minutes later I remembered a couple and I think that helped their impression of me because the vibe of the interview changed a bit for the better after that. The questions you ask are your opportunity to shift from being the candidate to being the consumer, and your chance to sort of demand why they make a good school and deserve your 200k.
It's a good experience. It's as much their pitch to get your business as it is your pitch as a good candidate. It's exciting to be able to see the campus, see the students (one of the main things that drew me to my particular school was the way students who had no involvement with the interview process would come up and talk to me, wish me luck, etc.. The first thing I heard upon entering the building was, "Good luck! Ah, I'm just kidding, you're already here so you don't need luck!").
From what I've heard of most people's interview experience, the field of Podiatry and our desire to become a stronger profession has led to some good community feelings, and it shows.
What I mean is, MD is the standard, you know? With MD's and some other mainstream professions, there's a lot of internal competition. With my interview day and my experiences being in school now, it's seemed that there's a lot more effort between students to help each other succeed to better the profession, rather than being happy when other people fail because you look better by comparison.
I suppose I'm rambling now, I just love where I am profession-wise, and I could talk about it all day. Anyway, good luck! Lemme know if there's any other specific questions about interview days in general. It's one of those things where you worry about it for weeks and, when the 15 minutes are over, you wondered why you worried so much.
