Stowaway
Happened to me many many years ago on frt flt from KRT-LGW.
During night loaded 2 crop spraying a/c. onto B707.
Before departure a/c was checked by military, nothing found, all ok.
As the knackered l/m sat myself on rear seats ready for long sleep.
As a/c got airborne the canopeas on the crop sprayers opened and out stepped their 2 pilots.
We continued our flt to LGW, however now I did,nt have enough catering for crew + 2