I don't know... I would definitely take my own if I felt the quality of my life would never be good again. So, it follows that I could take the life of someone else who was suffering if that was what they wanted.I once had someone break into my house and I told my husband I was very glad I didn't have a gun. I don't believe in killing someone who is need enough to break into a house. This is someone who needs help. But, I would have shot him if I had a gun.
I would probably shoot someone in a war situation, but I think your state of mind is in a strange place then. The old "Fight or Flight" syndrome type thing.
I guess you gotta be there.
Love, Annamill