I think this kind of things should be spoken by the pacient itself way before having an accident or in the vegetable state.
I have spoken this to my relatives and i have told them to unplug me in case something like this happens, also in case of kidnapping, i told them to try to rescue me instead of paying for my freedom.
I think if you see people in that state "without any decision taken before", it may be actually their fault, i know those cases can be hard to solve, but i would unplug them after a shot time to recover themselves.
You may find a mirror trying to find the other side of the world







