In Bob Hoover's book FOREVER FLYING . he tells of his POW days at the end of the war and how he and his mate thought they could get away in a He111 .
There were many such aircraft parked around a field in NE Germany so to pull off this one required only a short hop over to Sweden. Bob and old mate were out of their camp on a day labouring detail. The plan they hatched was to carry a long pole between them past the parked kraut aircraft having already earmarked their chosen one. They laid the pole carefully on the ground. No guards anywhere in sight. They got into the Heinkel . Bob had already some days or weeks before got hold of some pilot's notes. They had both engines primed and ready to try a start when a guard on his motorbike spotted them. He told the two Americans verboten get out of here and stay away from the aircrafts . . . ( Seem to remember there was an instance or two of escape by enemy aircraft )