A man wakes up one morning with a bizarre idea: that he is dead. He can't shake it, and for weeks he keeps insisting he's a dead man. Doctors devise a plan. They spend hours discussing the fact that living people bleed, and dead people do not. This involves countless pictures, descriptions, videos, and other proofs. Eventually, the man agrees. He declares, without any qualifications, that only living people bleed. As soon as the man makes that remark, a nurse reaches out and sticks him in the arm with a needle. Looking at the little trickle of blood, the man says with surprise, "I guess I was wrong…dead people bleed, too!"