What would you do for a living if you could do anything?

I got asked a variation of this today -- what would I do if I weren't working in my current field. It's bugging me, because I'm thinking and thinking about it, and I have no idea! I'm not really interested in, trained for, or skilled in anything else. At the rate my industry is changing, though, I probably won't be able to retire from anything resembling the job I do now, so it's not a bad idea to think of alternatives. But I wouldn't even know how to go about finding another field.