My second degree was in Metals Science and Engineering. At Penn State, the metallurgy/materials department was part of the College of Earth and Minerals Sciences and not part of the College of Engineering. My office was in Steidle Building. I remember occasionally wandering around the museum when I needed a study break. They had some nice displays there. Did you ever come to Steidle to look at the shrunken heads? They had real shrunken heads in a display case.
I went back for the third degree because I was in a lousy job and wasn't having any luck finding something better. I decided that I would change fields from materials and corrosion to chemical engineering, so the third degree was in Chemical Engineering.
After getting that degree, I ended up back in the corrosion and materials field. The background in chemical engineering makes me a better engineer overall, but I don't officially get much chance to use that degree.
Bill
At least all of your degrees seem to be related.
It looks like you just can't take the engineer out of the degree.
Penn State's "Old Main" Building