Didn't a DC-10 or Tristar crash in the 70's killing all 300 or so passengers on the way to/from the Haj when someone lit up a stove or 2 in the back ?
There was another tale of an airborne burglary when a thief leapt from a 727 - with a proper parachute - over an American desert and has never been found. I think it was more than just a burglary but can't remember the detail, and I think he got away with about $100,000.
Re moving mechanical bits, the Hunter F-models had a peculiar cockpit opening mechanism whereby a clutch lever was first engaged by the pilot and then the open/close switch was operated as appropriate. Before leaving the aircraft the pilot had to disengage the clutch to prevent inadvertent snagging. A story/myth doing the rounds at Chiv decades ago was that a pilot only half-disengaged the clutch and then snagged the switch as he was leaving, causing the canopy to slide repeatedly into his bonce, crushing his bone dome at least.