I think that one risk being a organ donor is quite the opposite: Over-treatment. It might not be in your best interest (a painless death) to be painfully coole

I think that one risk being a organ donor is quite the opposite: Over-treatment. It might not be in your best interest (a painless death) to be painfully cooled down by a freezer to reduce the fever that can occur after severe aneurysms - while waiting for the brain infarct that will induce a "brain death." The cynical might say that it's for saving your organs rather than for your survival, and it's hard to tell how much pain is experienced, but looking at the reaction of the body,it's apparent that it hurts as hell.