At one of the RAF BFTS stations in the 1970s, the groundcrew would pop a NAAFI rat pie on the jet pipe surround during turn round servicing.....
One day one of the lads was called away whilst his pie was warming up. Meanwhile the new crew came out, cranked up and taxiied out. Much smoke issuing from where it shouldn't and out came the fire wagons..... The crew weren't too impressed when they found out the cause, neither was the lad whose pie had been cremated!