I know that if I was making a decision in a rational state of mind that I would not. I do not think pain and emotion should be a factor in making the decision. Now it's true that under such extreem circumstance I could become irrational, but being irrational is not something I understand or relate too very well, and it is not a certainty that I would become irrational either.
To make a choice to jump while in a rational state of mind requires you to assume that either there is no God to save you (something I know is false), or that God has no intention of saving you. It may be true that it's your time to die, but it might not be and you never know if you don't try, so for me, to give up and choose to jump without being irrational, is a rejection of my faith that I could not do.