Interesting that you raise the possibility of an airborne hog roast:
1. My CO back in the days when I was a Spacey was a National Serviceman in Aden and used to tell us the story of when he was on the crash crew and they got a call telling them that a DC 3 was on its way in with its tail on fire. A bunch of hajjis on their way back from Mecca decided to roast a sheep.
2. (Early 1990s) My best friend from school went to India in his gap year. He took the cheapest flight available (Aeroflot- and I can hear your alarm bells ringing already). On the leg from Moscow to New Delhi, as soon as the seatbelt signs were off (for those that had seatbelts) the Indians on board reached up into the overhead lockers and pulled out gas camping stoves!