Oooh, nursing sounds cool! My mom's a nurse, but I've never really been terribly interested in it myself. As for teaching, I guess you could always become a nursing teacher if you want later on, but things tend to change once you get into something, I think.
And yeah, I wanna be a vet! I really love animals and would like to take care of them, especially after I started volunteering at my SPCA. I've also thought about being a forensics scientist or a physical therapist, but forensics probably won't happen since there's a specific major you need (I think it's chemistry), and I don't think it's bio, and I don't think I'd really want to leave bio.
Also, sorry for becoming some weird career counselor on you, haha. This has been an interesting and fun conversation, though.