It's pretty cool finding out what everyone does, and what other careers there are out there.
I also wanted to be a vet when I was younger but I couldn't get the work experience. Thought about medicine until I realised that I was just applying because it was a bit like vet. I'm glad I dodged that bullet! I'm a research scientist now. If I could have any career I'd like to continue with this one and end up running my own lab.
It's a fickle career path though, luck on your projects and who you know plays a big part of it, and you basically have to chose between career or family. Some people say you can have a family and a career in science but I think they tend to be exceptional superwomen!
If I don't make it my back up plans are teacher, police person (mounted or dog section) or clinical biochemist. It all depends on when I can't keep going in academia any more and what opportunities are out there if/when I have to leave.
I'm currently trying to apply for my first postdoc, I have to leave the country so I'm pretty excited and scared!