my dog senses a visit to the vet way in advance, which is wierd. He'll start shaking uncontrollably as soon as he gets in the vehicle. By the time he gets there he's shaking so bad he can hardly move! Once inside he jumps up and wraps his paws around my waste like he's begging me to please take him home. Vet trips are extremely traumatic for him...not sure why because they love him to pieces!