Other:

• Photographer
• Musician/composer
• Mountain guide
• Cook

At least, those jobs would be related to activities I enjoy doing in my spare time these days. 

OTOH, I'm not sure it would be a good idea, because every time I tried to "go professional" with one of my hobbies, it was the end of it, kind of...

For example

• I studied electrical engineering/electronics, mainly because I had been doing this as a hobby for many years before (in quite a geeky fashion actually, ever since I had been a little girl — much to the bewilderment of my environment...). But then I somehow suddenly lost all interest — even before having finished my degree. And I haven't touched the field ever since.
• So I studied psychology (something I'd always been interested in), and even worked in the field (i.e. scientific research) for some time. But then I got more interested in doing programming full time — which I already had been doing quite a lot to get my psych. experiments carried out, data evaluated, reports written, etc.
• So I switched again, and became a programmer/software engineer — which is what I'm doing for over a decade now.  Still doing it (in part because there is Perl), but who knows...  (yes, I still do like hacking in my spare time, too, but it's no longer the same thrill it once was).