My Grandmother used to tell my mum that she saw ghosts near a hill just out of Ayslebury in Bucks. Apparently a Messerschmitt Bf110 was shot down there in 1940 and crashed into a bog. The Bf110 was never recovered and both crewman were never found. The ghosts used to walk up the hill then disappear from view.
Maybe the mysterious Messerschmitt referred to in Sugar Junkie's post was in fact a 110? I read somewhere that a few Bf109's were fitted with long range tanks and operated into England on hit and run raids by specialist units.