Elephant and Castle
It is certainly not something he was hired on his ability to do, has been extensively trained to do, or is encouraged to practice. (In fact) above FL 295 he is not allowed to even try.
Quite.
Had a f/o lose control of the aircraft completely last year. Not entirely sure, but I think he was trying to do a barrel roll. But the odd thing is that having sent a thorough report to the relevant authorities, they did not even have the common decency to reply and say 'thank you'. For all I know, they have waste-bins full of these reports, waiting for their turn in the incinerator.