Your abnormal and one-of-a-kind blood type is found by scientists to be a cure for all cancer. To know with certainty, a procedure would have to use every drop of your blood. But if they try this procedure, you will die. Transfusions are not an option. You will not be saved if you agree to donate all your blood.

If you do donate, you will die a hero, knowing you gave your life to alleviate the suffering of others. If you refuse to give away your life for science, the chance to cure the disease would be lost.