UPDATE: This poll ran from 9-24-08 to 10-1-08. Here are the final results.
Before I met my wife, this question would have been a lot simpler. I would have done it without a second thought. Almost instinctively. Now though, I have a family. A wife and a brother-in-law that I help support that would have their entire lives affected by my death.
I would think twice and in that instance it may be enough time for the person who's life I could have saved to be lost. If it is a child sitting on some railroad tracks though the decision would be a lot more difficult. If it is a grandmother or grandfather, I don't know what I would do.
Many years ago I received a photograph (possibly edited) of an old man pushing a child out of the way of a stampeding monster truck. I searched for it but couldn't find it anywhere. Imagine in posted right here in very dramatic fashion. :)
I would risk it for sure if I thought I had a chance to survive but if it was absolutely sure that I would die, I don't know what I would do.
How about you? Don't forget to take the poll! :)