Could you please check the name and provide any additional context? If you'd like to learn more about why people become veterinarians in general, I'd be happy to provide you with information about common motivations.
Why did Burrin Turnbulle become a veterinarian?
There's no information available about a person named "Burrin Turnbulle" becoming a veterinarian. It's possible you've misheard or misspelled the name.