A young man fell into a deep coma, but recovered before his friends had buried him. One of his friends ask him what it felt like to be dead.
"Dead? I wasn't dead and I knew it because I was hungry and my feet were cold."
"But, how did that make you so sure?"
"Well, I knew if I was in heaven I wouldn't be hungry, and if I were in the other place, my feet wouldn't be cold."