Johnny, age five, was told by his mother that he must finish his breakfast porridge. He said he didn't want to.
His mother replied, "You must finish it. If you don't, God will be very angry."
She went into the kitchen to wash up, leaving Johnny looking with a sullen determination at the porridge. Outside it was raining, and suddenly there was a heavy roll of thunder.
Johnny's mother came back into the room and found him eating his porridge as quickly as he could, and meanwhile muttering to himself, "All that fuss for a small bowl of porridge!"