Elroy, I knew a steward who swore to me this story was true. He and a stewardess were sitting in the rear vestibule seats of a VC10. They're by the door right back between the engine intakes, so very noisy. Night, seat belt signs on, turbulence, facing rear, trying to hold a conversation. Around the bend next to his shoulder a ball of lightning had come down the cabin, gently around the bend and floated gently past them at shoulder height, heading towards door, moving very slowly. It then passed through the door and disappeared. Very funny atmosphere, hair on end (it would be!), stewardess hysterical, unable to swallow. Several other similar incidents known over the years in BA.