musta been a few headaches!

I had a friend during my shipboard days who had gotten a waiver for his excessive height allowing him to join the Navy. He had the whole overhead area of the major passageways of the ship memorized. Watching him walk at full speed bobbing his head about to avoid various projections was a real delight. One day he was walking past the area where the daily coffee ration for each work space was handed out. The window through which the coffee was handed out had a shutter that was hinged at the top; it swung out and was hooked to the overhead during the time that the coffee was handed out. He didn't have the shutter programmed into his map and he walked into it at full speed.