In my country you can choose to either go (back then) 8 months to the army, or work 12 months for the government (firefighters, ambulance, etc.) - I got assigned to a care center for old/sick people. On one of the stations there were a lot of people in coma, and they basically were cared for until they die. They didn't respond to any interaction. Still we had a seminar about how we have to behave around them, not to make any rude jokes and treat them respectfully. Now of course i could argue it was forbidden for us to be offensive... if you want to use these words, be my guest. But using these words in a legal sense is stupid, as this is not what the law is about.