A flight attendant was on the red-eye to Manila when a water leak developed in the galley, which eventually soaked the carpet throughout the aft cabin of the 747. A very sleepy woman who had become aware of the dampness tugged at her skirt as the attendant passed by. "Has it been raining?" she asked the flight attendant. Keeping a straight face, she replied, "Yes, but we put the top up." With a sigh of relief, the woman went back to sleep.