I interviewed at DMU in December and got rejected. I have interviewed at 5 other DO schools and have been accepted to all (OSU, NSU, TUCOM-MI, KCOM, LECOM-FL). I really liked DMU and was disappointed I was not accepted. I called and all they could say is the interviewers said I "lacked a commitment to medicine". I don't consider myself to be a bad interviewer, but I do remember saying I didn't always know I wanted to be a doctor(in response to their question "when did you know...". It's only been within the last 7 years or so, as opposed to "since I was 2". Other than that I felt really good about my interview. My GPA, science GPA, and MCAT exceed the average of matriculated students, so that wasn't an issue. I also met someone at a different interview who was waitlisted in October and that guy was an awesome candidate with great people skills. He had multiple acceptances both MD and DO with no other post-interview waitlist or rejections. So it does happen. I still don't know why, but it's probably better for me in the end...