Maybe I'm going through a grad school identity crisis - indulge me.
1) What would you be doing now if you weren't doing what you're doing now? (Note: this is a different question than, "What did you do before you do what you do now and why did you stop doing it?")
2) Why aren't you doing it?
1) Architecture - specifically, high-density urban living places. I've been interested in the field for a while, but I've recently begun reading magazines about the functionality of small-space urban dwelling - finding the necessities, doing away with the excess, living simply - appealing and fascinating.
2) Good question, J.Bro! I think it's a combination of (1) not realizing that it was an interest sooner in my life and (2) the sunk costs (both time and financial) of going to grad school for something else.