What would you give up?

http://www.equestriadaily.com/2011/10/story-cold-hand-of-mercy_27.html
(YES! I am well aware of the recurring pony theme here but bear with it.....)

After reading this story, I couldn't help but ask myself "What would i do if I were put in the same situation?"
So, the question here is simple, but there are a few boundaries too which you can answer and a few rules as well.
1: If you say no, you'll die
2: no giving up friends/family members unless you know with absolute 100% Certainty that they would willingly surrender themselves. (Even then you can stop them if you wish.)
3: you can give up any of your own personal traits....emotion, knowledge, your own physical body, etc.
4: You can NEVER see friends/relatives again until it comes time to do what death does.

I have been thinking about this at the back of my mind ever since I read it, and haven't been able to come up with an answer to this question.........no matter how hard I try to think of a decent answer.

I couldn't open it bc it was my little pony

I'd be willing to give up stupidity as a whole.
Life without morons is almost too convenient...