Today, I operated on a little girl, she needed O- negative blood. We didn’t have any, but her twin sister has O- negative blood. I explained to her that it was a matter of life and death. She sat quietly for a moment, and then said goodbye to her parents. I didn’t think anything of it until after we took her blood and she asked, “so when will I die”? she thought she was going to give her life for her sister. Thankfully they both died.