What are some things that could happen when becoming a Veterinarian?

Your question is extremely vague. As a Vet you could be kicked by a horse, trampled by a cow, bitten by a dog, or scratched by a cat.

If you want to know some of the day-to-day trials and tribulations of a Vet then I recommend you volunteer with animal shelters.

If there is something specific I do have Vet friends I could engage.