Impossible for me to say.
Oh, wait, I've already been that close to having a dance with The Grim Reaper:biggrin1:.
http://www.lpsg.org/94259-two-years-already.html
The thing about terminal illness, as I learned myself, is that until the final moment, there's always that weird hope. Pain and all (along with a variety of crazy drugs, which can not only numb pain, they can offer sensations otherwise unknown). I was told it was over, to get my affairs in order. It was repeated after the second regimen of treatment failed. I pleaded and cried for another group of meds and got a different oncologist. Persistence kept me alive.
If a person wants to end it, that is their choice and it should be an option available. I wasn't dealing with a cancer that affected my cognitive skills; so, I knew what was going on. I knew if I somehow pulled through, my mind would still function. Of course there was also the threat of having various items attached for possibly forever since my digestive tract was damaged. In the end, my decision was to take the chance. This was my decision, and one which was not arrived at easily. The knowledge of long term side effects from meds, the physical rehab, the possibility of recurrence, all had to be weighed in. When a regimen for wiping out the cancer failed, I had to think it through again. Less than 5 years later, I'm still not considered fully cured, as the 'window' which the medical community presents, has a 5 year mark. Then again, in the past year, I've seen 2 people have recurrence of their non-Hodgkin lymphoma, one has died, the other is close- they'd lasted 10 years without any cancer, it returned more aggressively and wider spread- that is what I think of now, so my decision today might be different.
Today, I might refuse treatment, as many have over the years. If I refused treatment, I don't know that I would then look for a way out- the screwy part of my thinking, would tell me to go for the ride, get those last sensations, those last moments of interacting with people. During my cancer battle, a friend of mine, was dealing with pancreatic cancer. He died in early 2006, but, he was lucid (aside from what meds do) up until the end. He knew (the majority of the time) who was visiting, who had called on the phone, and still made his little quips. He also knew he wasn't going to make it; but, didn't want to run away.
Everybody is different for what they can and cannot handle, and the option to bow out should exist, with the medical community assisting.