A 'true' story from a mate of mine- in around 1994, he got the wonderful job as Pink Floyd's tour skipper.
I cannot vouch if true or not, so don't shoot the messenger.
Now, not one to do things by halves, David Gilmour hired the Sultan of somewhere or another's personal 727. It has marble baths and stuff like that.
The SOP of the band and roadies was to wait for either Nick Mason or Gilmour (both rated on multi's I believe? Both total aviationheads...) then to take the controls...then, the band and crew would wildly run up and down the aircraft to destablise the the COG!!!!
I can see it now:
PIC to Gilmour: I thought you said you could fly..."
DG: (as plane wildly banks hither and thither, nose goes up, then down...)...."I can, I haven't a clue what's wrong with this thing!"
Probably the most expensive piece of childishness ever.