Write about:
A) Why you want to be a veterinarian
B) How you plan to accomplish your goal (your path to success)
The intended message was not received properly due to poor body language.
Come up with a situation, this is a typical reason for it to be interpreted incorrectly.
The reason why ethics differs when we're talking about people, companies, nations is that all of these have interests which may differ. What happens then with differing interests is that it also lead to different moral and value systems which again in turn lead to different ethics. Most usually, the actual source why ethics differ is either due to the interests or wishes of a particular social group mentioned here.