Dr. Cadena interviewed me. Did anyone else have him? My tour guide did last year & she told me he's always a little "serious" at the beginning and then he warms up.
I had Dr. DeLa Cadena, too, and, yes, I have the exact same impression .. intimidating at first, but man, once you ask your first question he's as warm as the pillsbury dough boy ..
btw, I am talking to you 6 years after your post .. so .. yea ..