A man Is wandering in the desert He is lost with no food or water, and is starving. He assumes quite rightly that he is going to die. 
However just then he sees a church off in the distance. He sprints for it and inside he gets down on his knees and prays for food. *PLOP* A lump of meat appears before him. 
He wolfs the food down. It is tastier than anything he's ever had before.
 He raises his hands to the sky and looks up and is about to give his thanks to God, when he sees......... a leper, painting the ceiling.