Right Jonas13, here are my views on euthanasia:
I think, generally, that it should be legal, but that it should be controlled. I would like to see a system of pre-Will wishes, which would outline a person's wishes were they to become severely impaired but still alive. Part of me thinks that it's wrong to keep someone alive on unnatural support (i.e. a ventilator etc), because if the body can't support its primary functions, it's not really going to be able to do so well in the big wide world.
The principle problem is one of emotion. Nobody likes to see people die, and in this situation, it's difficult to say "End it" and walk away, as either a medic or a relative. (I fully understand your position, but the way vat_man, and I do agree with it). So relatives and doctors are going to try to do anything possible to keep the person alive, and in doing so, they will often override the patient's wishes. Which I think is wrong.
In general, people don't want to be a burden to others. I'm going to be 30 this year, and two years ago, I had a big shunt in my car. I'm lucky to be alive. If I had been horribly injured, but remained alive, my wife would have to care for me for the rest of my life, which may be a number of years, during which her life would be severely impaired. I don't want that to happen to her. If I'm not going to get better, put me down, like you would a terminally-ill pet. Is it right to put a dog out of its misery, but to keep a human alive? I don't think so.
So this is where we come back to the pre-Will idea. Everyone should make one according to their own wishes (which would obviously take into account religious beliefs etc). I would define a number of conditions, such as multiple limb loss, loss of brain function, loss of primary body functions (e.g. unsupported breathing, eating, waste extraction), which if I underwent them, I would no longer wish to live. I would do this in agreement with my wife, and parents (and children when they became sufficiently old to be able to deal with the concepts involved), so that all the cards were on the table.
And I would expect them to carry out my wishes before my death, in the same way as I would expect them to after it.
It's a tough old world out there, and without all my abilities, I wouldn't want to be in it.
On the issue of third-party euthanasia, it's a tough one to call. I think that if you set up my proposed pre-Will idea, it should remain illegal for a doctor or a relative to say "End it" in the absence of a pre-Will, unless the relative were a parent of the victim.
That's my opinion. I hope it helps jonas13, and I'm sorry if it upsets anyone.