Lysergic acid diethylamide, LSD, invented in 1938 by Dr. Albert Hoffman, had a colorful past before it became Lucy in the Sky with Diamonds. In its earliest days, the military liked to dose its troops with it, supposedly to test its effectiveness in war, but really because it was just so much fun to watch soldiers trip their brains out while handling loaded weaponry. You might have seen this hilarious clip, in which a British squadron has trouble maneuvering during maneuvers.