Did you hear the one about the man at the funeral home?

Did you hear the one about the man who was hit on the head and fell into a deep coma? He stayed that way for such a long time that people thought he was dead.  They sent him to a funeral home and stuck him in a coffin.  At two o'clock in the morning, all alone in a dimly lit room, he sat up and looked around.  "What is going on here?" he asked.  "If I'm alive, why am I in this casket? And if I'm dead, why do I have to go to the bathroom?"