Cremation.
 

A Cardiologist was given an elaborate funeral,behind the casket,there was a heart shaped door covered with flowers. After the eulogy,the heart opened and the casket rolled inside. Sealing the Doctor inside, forever. At that point one of the mourners burst into laughter. With all eyes staring at him he said. "I'm sorry i was just thinking of my own funeral, I'm a Gynecologist."