I loaded a feckin plane bound for Edinburgh and just as we finished, they cancelled the flight due to worsening weather up in Jockland. So we had to bleddy unload it all!
That happened to me TMR ~ Just loaded and fitted all the kit for a Royal Flight to Canada when the aircraft went "sick" so had to heave it all off and put it on the spare, then the spare went "sick" and we had to bring up a third and repeat the performance.
Fitting out a Royal Transport included removal of all seats, beds (Queen and DoE have individual beds and studies, special seats and carpets as well as enough luggage for a Royal Trip that involves some 5 changes of clothing/uniforms per day for them and their attendant ladies in waiting, equerries, secretaries etc)