I enjoyed a couple of "indulgences" from Lossie in the 70's/80's.
The "paper plane" used to offload at VASS in the wee small hours, by assisting in unloading the Daily Record you could qualify for a return trip to Squires Gate. My trip was on a British Island Airways HP Herald; southbound was a bit grim as there were no seats and had to brace between the flight deck seats for take off and landing. Return was more comfortable as it was possible to fashion an enormous armchair out of Daily Records (perhaps the best thing for 'em)
The other trip was in the AOC's gin palace, a DH Devon, down to Turnhouse. Payment in kind was to empty the big cheeses ashtrays. Tremendous fun, just the two crew and myself hammering along the low level system.